Used Constmach Impact Crusher/Sand Making/Stone Crusher for sale (11,521)

Condition: new, functionality: fully functional, power: 220 kW (299.12 HP), fuel type: electric, color: other, Year of construction: 2026, TECHNICAL SPECIFICATIONS: -Production Capacity: 150-200 Tons Per Hour -Crusher Type & Size: Turbo Impact Crusher – 1200x1000mm -Maximum Feeding Size: 600mm -Total Motor Power: 220 kW Guodpeyzw N Esfx Ak Uob MIC-100 is a combination of: • Bunker • Vibrating Grizzly Feeder(Bypass) • Turbo Impact Crusher • Folding type bypass and stock conveyor belts • Hydraulic feet • Mobile Chassis with axles and tires • Fully Automation System • Easy walking platforms for maintenance • Diesel Generator (Optional) *All of our products are made with care and covered for 1 year warranty! *Installation and Operator Training FREE FOR FURTHER INFORMATION PLEASE FEEL FREE TO CALL US!!!

Condition: new, functionality: fully functional, fuel type: hybrid, color: other, overall weight: 52,000 kg, Year of construction: 2026, *All of our products are made with care and covered for 1 year warranty! *Installation and Operator Training FREE Fabo tracked impact crusher FTI-130 is a complete mobile system which moves on hydraulicly driven tracked system with 1 km/h speed and combination of a vibrated grizzly feeder, an Impact crusher, foldable stockpile conveyors, control unit and electric generator. In today's conditions and technological processes, businesses are beginning to think about how to make their field of activity more efficient. As they make it more efficient, they always take into consideration factors such as the operationality of the machines they use, their low cost and staffing needs. Our Tracked Crushers can crush with high performance even on the most demanding mine sites with its specially designed body and compact structure. Customization can be done to our tracked systems by Jaw Crusher, Primary and Secondary Impact or Cone Crusher. Advantages of Tracked Crushers; -Heavy-duty walking tracks can reach places where ordinary machines can not reach. -It has the appropriate dimensions and sound level to crush construction waste in the city. -The fuel consumption of the generator and walking track units are very economical. Gusdpoyzw H Rofx Ak Ujb -System maintenance and management is very easy with latest technology control software. TECHNICAL SPECIFICATIONS: Model: FTI-130 Production Capacity: 400-500 tons per hour Maximum Feeding: 500 mm Crusher Type: Impact Crusher SIZE: 1270x1200 mm CSS Setting: 0-50 mm Total Power: 500 kva Weight: 52000 kg - Low investment and operation cost – Zero substructure preparation – Easiness at usage and maintenance – Easy assembly and disassembly FOR FURTHER INFORMATION PLEASE FEEL FREE TO CALL US!!!

Condition: new, Year of construction: 2026, functionality: fully functional, CONSTMACH hydraulic boom crusher, also known as a hydraulic rock crusher, is designed to deliver superior performance in demanding work environments such as quarries, mining operations, and recycling facilities. With its high impact force, it easily breaks down large-sized rocks and stones, making them suitable for the crushing line. This system allows large materials entering the crusher's bunker, especially in the initial crushing stage, to be reduced in size without direct human intervention. The hydraulic boom system, which can be controlled remotely, offers the operator maximum safety, comfort, and control. Vibration and noise levels are kept to a minimum, protecting both the operator and the equipment's lifespan. Guedpfxjxpvtps Ak Ueb Thanks to its high-quality material structure, the CONSTMACH hydraulic boom crusher maintains its durability for many years and stands out with its easy maintenance and integration with different crushing systems. This system is an excellent solution for businesses seeking efficient, economical, and safe crushing. Hydraulic Boom Crusher Technical Specifications Crusher: CHB400 Weight: 350 kg Equipment Diameter: 68 mm Pressure and Flow Rate: 100-150 bar / 50-80 liters Installation Area: 700 m² Boom System Specifications Working Angle: 360° Maximum Reach Area: 9000 mm Material: S355J2 Motor Power: 18.5 kW Control Type: Radio-controlled and manual valve control Filters: OMT 25 microns Hoses: (R2) Bezek Why Choose CONSTMACH Hydraulic Rock Breaker? With years of experience in the industry, CONSTMACH prioritizes quality and safety at every stage of production. Our hydraulic rock breaker systems are designed to offer maximum efficiency and minimum maintenance costs. All parts are manufactured from high-strength steel to withstand heavy-duty conditions. Furthermore, we guarantee the uninterrupted operation of your business with our spare parts and technical service support. If you are looking for a durable, reliable, and high-performance crushing solution, the CONSTMACH hydraulic boom crusher is the right choice for you. What Do We Do at Constmach? Constmach is a leading machine manufacturer offering a wide range of products tailored to the needs of the construction and mining industries. Our product portfolio includes concrete block making machines, stationary and mobile concrete plants, rock crushing machines, rock crushing and screening plants, sand washing machines, sand making machines, asphalt plants, conveyor belt systems, jaw crushers, and mobile crushing plants. With its high quality standards, innovative production approach, and customer-focused solutions, Constmach stands out as a reliable brand in both national and international markets. Our products continue to be the preferred choice of industry professionals due to their durability, efficiency, and long-lasting performance.

Condition: new, functionality: fully functional, color: other, Year of construction: 2026, CONSTMACH stationary stone crushing plants are designed with a focus on high efficiency and durability, offering long-lasting industrial solutions. Each plant is specifically configured based on the hardness and abrasiveness of the material to be crushed and the desired product size. With production capacities ranging from 50 t/h to 1,000 t/h, they perfectly adapt to projects of different scales. The crusher types used in the plants are selected according to material properties to achieve maximum performance. Our design team creates optimized 3D layout plans using feeder, crusher, screen, bunker, washer, and conveyor components. This ensures high capacity, low energy consumption, and minimal maintenance costs throughout the production process. Each plant is custom-designed to suit the investment budget and operating conditions. Our engineering team offers the most suitable projects and proposals to prevent unnecessary expenses. Gedpfoxqhy Rjx Ak Uoub CONSTMACH stationary crushing and screening plants are equipped with high-quality electronic components from SIEMENS and SCHNEIDER, and minimize operator intervention thanks to a PLC-based fully automated system. This provides safe, fast, and stable production. Fixed Stone Crushing Plant Technical Specifications Production Capacity: 50 – 1,000 t/h Type of Material to be Crushed: Varies according to the desired product type Final Product Dimensions: Adjustable upon request Crusher Types: Jaw, impact, cone, or vertical shaft crusher options Why Choose a Fixed Stone Crushing Plant from CONSTMACH? CONSTMACH makes a difference with its engineering approach that offers customized solutions to each customer. Our plants operate continuously for many years thanks to high-quality components, energy-efficient designs, and reliable automation systems. With our after-sales support service that prioritizes customer satisfaction, we are by your side at every stage of your investment. CONSTMACH is the right choice for fixed rock crushing plants offering powerful performance, low operating costs, and maximum efficiency. What Do We Do at Constmach? Constmach is a leading machine manufacturer offering a wide range of products tailored to the needs of the construction and mining industries. Our product portfolio includes concrete block making machines, stationary and mobile concrete plants, stone crushing machines, stone crushing and screening plants, sand washing machines, sand making machines, asphalt plants, conveyor belt systems, jaw crushers, and mobile crushing plants. With its high quality standards, innovative production approach, and customer-focused solutions, Constmach stands out as a reliable brand in both national and international markets. Our products continue to be the preferred choice of industry professionals due to their durability, efficiency, and long-lasting performance.

Condition: new, functionality: fully functional, Year of construction: 2026, CONSTMACH stationary stone crushing plants are designed with a focus on high efficiency and durability, offering long-lasting industrial solutions. Each plant is specifically configured based on the hardness and abrasiveness of the material to be crushed and the desired product size. With production capacities ranging from 50 t/h to 1,000 t/h, they perfectly adapt to projects of different scales. The crusher types used in the plants are selected according to material properties to achieve maximum performance. Our design team creates optimized 3D layout plans using feeder, crusher, screen, bunker, washer, and conveyor components. This ensures high capacity, low energy consumption, and minimal maintenance costs throughout the production process. Each plant is custom-designed to suit the investment budget and operating conditions. Our engineering team offers the most suitable projects and proposals to prevent unnecessary expenses. CONSTMACH stationary crushing and screening plants are equipped with high-quality electronic components from SIEMENS and SCHNEIDER, and minimize operator intervention thanks to a PLC-based fully automated system. This provides safe, fast, and stable production. Fixed Stone Crushing Plant Technical Specifications Production Capacity: 50 – 1,000 t/h Type of Material to be Crushed: Varies according to the desired product type Final Product Dimensions: Adjustable upon request Crusher Types: Jaw, impact, cone, or vertical shaft crusher options Why Choose a Fixed Stone Crushing Plant from CONSTMACH? Gsdoxqgwzepfx Ak Ujub CONSTMACH makes a difference with its engineering approach that offers customized solutions to each customer. Our plants operate continuously for many years thanks to high-quality components, energy-efficient designs, and reliable automation systems. With our after-sales support service that prioritizes customer satisfaction, we are by your side at every stage of your investment. CONSTMACH is the right choice for fixed rock crushing plants offering powerful performance, low operating costs, and maximum efficiency. What Do We Do at Constmach? Constmach is a leading machine manufacturer offering a wide range of products tailored to the needs of the construction and mining industries. Our product portfolio includes concrete block making machines, stationary and mobile concrete plants, stone crushing machines, stone crushing and screening plants, sand washing machines, sand making machines, asphalt plants, conveyor belt systems, jaw crushers, and mobile crushing plants. With its high quality standards, innovative production approach, and customer-focused solutions, Constmach stands out as a reliable brand in both national and international markets. Our products continue to be the preferred choice of industry professionals due to their durability, efficiency, and long-lasting performance.

Condition: new, functionality: fully functional, power: 297 kW (403.81 HP), fuel type: electric, color: other, Year of construction: 2026, *All of our products are made with care and covered for 1 year warranty! *Installation and Operator Training FREE TECHNICAL SPECIFICATIONS: -Production Capacity: 250-350 Tons Per Hour -Crusher Type & Size: Secondary Impact Crusher – 1120x1500mm -Maximum Feeding Size: 450 mm -Vibrating Screen Size and Deck: 2200x5000mm 3-4 decks -Total Motor Power: 297 kW MDMK-03 is a combination of: • Secondary Impact Crusher • High Stroke Type Vibrating Screen • Folding type feeding, feedback, bypass and stock conveyor belts • Hydraulic feet • Mobile Chassis with axles and tires Gsdpfjyubgyex Ak Usub • Fully Automation System • Dust Suppression System • Easy walking platforms for maintenance • Diesel Generator (Optional) FOR FURTHER INFORMATION PLEASE FEEL FREE TO CALL US!!!

Condition: new, Sand Gravel Fabrication Plant: Essential Solution for Modern Construction Needs In the construction and infrastructure industry, high-quality sand and gravel are critical raw materials for creating concrete, asphalt, and other foundational elements. A Sand Gravel Fabrication Plant is the cornerstone of producing these materials efficiently and at scale. With advanced technology, versatility, and scalability, these plants cater to a wide range of projects, ensuring consistent quality and meeting the growing demand for construction materials. This article explores the general introduction, features, and applications of sand gravel fabrication plants, including both stationary and mobile systems. General Introduction to Sand Gravel Fabrication Plants A sand gravel fabrication plant is a specialized facility designed to process raw materials such as sand, gravel, and aggregates into construction-grade products. These plants combine various equipment, including crushers, screens, conveyors, washers, and storage units, to convert raw materials into ready-to-use aggregates. There are two primary types of sand gravel fabrication plants: Stationary Fabrication Plants: Fixed installations designed for high-capacity production. Ideal for large-scale operations and long-term projects. Mobile Sand Gravel Fabrication Plants: Portable systems that can be transported to different project sites. Perfect for temporary operations and projects in remote locations. Both types are equipped with advanced machinery and automation systems to ensure high efficiency, precision, and sustainability. Applications of Sand Gravel Fabrication Plants Sand gravel fabrication plants are indispensable across multiple industries due to their ability to produce high-quality aggregates. Key applications include: 1. Construction and Infrastructure Produces sand and gravel for concrete, asphalt, and base materials. Supports large-scale infrastructure projects such as highways, bridges, airports, and railways. 2. Residential and Commercial Development Supplies aggregates for building foundations, driveways, landscaping, and drainage systems. Plays a vital role in residential housing and commercial property construction. 3. Road Construction Provides high-quality crushed stones and sand for roadbeds, pavements, and highways. Ensures durability and longevity of road surfaces. 4. Mining and Quarrying Efficiently processes mined materials into usable aggregates. Gusdpfx Aevlwqlek Uob Enhances productivity in quarrying operations with optimized material handling systems. 5. Environmental Restoration Supplies aggregates for erosion control, land reclamation, and shoreline protection projects. Facilitates sustainable environmental rehabilitation efforts. 6. Recycling of Construction Waste Mobile sand gravel fabrication plants are ideal for recycling concrete and asphalt. Converts waste materials into usable aggregates, reducing landfill burden and promoting sustainability. Stationary vs. Mobile Sand Gravel Fabrication Plants Stationary Fabrication Plants Best For: Long-term, large-scale projects and industrial operations. Advantages: High-capacity production. Robust and durable structures. Advanced automation for minimal manual intervention.

Condition: new, functionality: fully functional, Year of construction: 2024, A crawler mobile stone crusher is a mobile crushing device that has a tracked chassis, which allows it to move around the site and be transported from one location to another. This type of crusher is generally used in areas where there are space restrictions and the stones need to be crushed directly at the site, making it a versatile and flexible option for various applications. Here are some key features and aspects of crawler mobile stone crushers: 1. Mobility: - The primary advantage of a crawler mobile stone crusher is its mobility. The tracked chassis enables it to move easily on different types of terrain, making it suitable for a wide range of applications, including construction sites, quarries, and demolition projects. 2. Crushing Mechanism: - Crawler mobile stone crushers are equipped with a primary crusher to break down the large rocks into smaller pieces. Common types of primary crushers include jaw crushers, impact crushers, or cone crushers. 3. Versatility: - These crushers are versatile and can handle various types of materials, including hard rocks, ores, and recycled concrete. They can be used for primary, secondary, or tertiary crushing depending on the specific requirements of the application. 4. Remote Control Operation: - Many crawler mobile crushers are equipped with remote control systems, allowing operators to control the equipment from a distance. This feature enhances safety and efficiency, especially in challenging or hazardous environments. 5. Compact Design: - Crawler mobile stone crushers typically have a compact design, making them suitable for working in confined spaces or on construction sites with limited available space. 6. Hydraulic System: - The crushers are often equipped with a hydraulic system to facilitate quick and easy adjustment of the crusher settings. This includes adjusting the crusher's discharge opening and controlling the feed rate. 7. High Production Capacity: Gujdpfxsq Nxpgs Ak Ueb - Despite their compact design, crawler mobile stone crushers can have high production capacities. This is crucial for efficiently processing large volumes of material on construction sites or in mining operations. 8. Screening Unit (Optional): - Some crawler mobile crushers come with an integrated screening unit, allowing the production of multiple particle sizes in a single pass. This can be particularly useful in applications where a specific range of sizes is required. 9. Power Source: - Crawler mobile stone crushers are typically powered by diesel engines, providing the flexibility to operate in remote areas where electrical power may not be readily available. 10. Easy Maintenance: - Many crawler mobile crushers are designed with ease of maintenance in mind, with features such as access panels and service points to simplify routine inspections and repairs. Crawler mobile stone crushers have become popular in the construction and mining industries due to their flexibility, mobility, and ability to crush a variety of materials on-site. They offer a solution for efficient and convenient mobile crushing operations in diverse working environments.

Condition: excellent (used), Year of construction: 2005, operating hours: 7,480 h, functionality: fully functional, overall weight: 33,500 kg, fuel type: diesel, Terex Pegson Trakpactor 428 on tracks 2005 year 7480 genuine working hours on John Deere CAT C9 33500 kg Inlet[mm]:up to 1067x711 mm Max size of inlet materiał: 400 mm CSS[mm]: 0-20 to 0-100 mm Guodpfx Akjyazl Hj Ueb Capacity[t/h]: from 100 to 200 Feed hopper 3,68 m3 Fitted with overband magnet Side conveyor can be bought. Wear plates 90% blow bars martensitic-ceramic Machine in great working condition, can go straigt to work

Condition: ready for operation (used), Min. output: 20t/h, wear plates: 13x Pos. 3, 14x Pos. 9, 20x 325x250mm, 28x 120x160mm, 18x 250x250mm, 23x 150x380mm, with blow bars, jaws, metering channel and 4x set screws with collar. Godjnn Aafepfx Ak Ueub

Condition: like new (used), Year of construction: 2008, Manufacturer: Hazemag Type: AP-PH 1415E Mach. No.: AD 26953 Year of Manufacture: 2008 Motor: Scania Rotor Size: 1.400 x 1.500 mm Included: – Conveyors – Overband Separator (Wagner 452-95/120-450) – Dumpbunker Gujdpfx Akjggfmhs Ujb – Feeders (Jöst FUF 1300/ – 200 x 4100 – Jöst FUF 1200/1277 – 200 x 2500) – Pre-screen (Jöst SUG 1400 x 2000) – Hydraulic opening system.

Year of construction: 2011, operating hours: 3,800 h, condition: ready for operation (used), functionality: fully functional, McCloskey I54 impact crusher on tracks 2011 year 3800 genuine working hours on CAT C13 engine' 2900 crusher hours(new controller) Engine CAT C13 - 536 HP 53000 kg Inlet[mm]:up to 1200x1350 mm Max size of inlet materiał:800 mm CSS[mm]: 0-20 to 0-150 mm Capacity[t/h]: from 150 to 300 Feed hopper 6,8 m3 Fitted with overband magnet Gedpfex Npv Hox Ak Uoub Fitted with prescreener Fitted with side conveyor 3-generator 31,5 kVA 400 V Wear plates 90% Blow bars 90% Machine in great working condition, can go straigt to work

Condition: new, functionality: fully functional, power: 200 kW (271.92 HP), fuel type: electric, color: dark red, maximum load weight: 74,000 kg, Year of construction: 2026, machine/vehicle number: GNR02, Equipment: hydraulics, With more than 45 years of manufacturing and field experience, we have brought a new breath to the quarrying sector. We offer many machine / plant combinations to our valued customers, from plants that crush and screen complete stone or mineral materials and stock them as products in many different sizes, to primary group crushers that make high capacity coarse stone crushing alone. ✔ GNR 02 It is our price & performance orientated mobile crushing plant that we have developed. ✔ GNR 02 Mobile Crushing Plant has a capacity of 180 - 250 Tonnes / Hour in full mobile system. ✔ GNR 02 Mobile Crusher provides aggregate product (crushed stone) in 4 different sizes. Some of its outstanding features are as follows, It can easily crush stones of different hardness. (Soft / Medium / Hard) It complies with international or domestic transport standards, easy to transport. Installation and commissioning is done in a short time, equipped with hydraulic system. Local workers (personnel) are taught how to control by our Expert Technicians. With General Makina professional support services, a comprehensive plant warranty excluding wear parts and also lifetime paid spare parts support is provided. Gsdewymm Dspfx Ak Ueub Standard Optional Options: * By-pass system * Magnetic magnet * Generator System * Dust Removal System * Frequency Control System * Control cabin and air conditioning Contact General Makina for our special crushing plant solutions for you.

Condition: new, functionality: fully functional, power: 315 kW (428.28 HP), fuel type: electric, color: grey, Year of construction: 2026, Mobile impact crusher marble recycling crusher ( High Capacity ) Another practical stone crushing machine from our company that meets the different needs of our valued customers, Mobile primary impact crusher. It is possible to reach a capacity of 250 / 500 tph in non-hard mines and minerals. Godpfswhnbrsx Ak Uoub You can easily increase the capacity of your quarry or recycling area in your new projects or already working. You can call us for our practical and innovative solutions for you.

Condition: new, Year of construction: 2025, Set of blow bars martensitic with double layer of ceramic for Metso 1213 crusher. We can also offer high chrome with ceramic for this machine All casting from EU foundries, best quality on the market We can also offer blow bars for all other machines like Tesab, Pegson, Rubblemaster, Hartl and many more Guodpfx Aoihfc Sek Uob

Condition: like new (used), “Hazemag Universa 1620” for Sale Manufacturer: Hazemag Type: Universa 1620 Rotor size: 1.600 x 2.000 mm Inlet size: 2.500 x 2.000 mm Gsdpfeggflvsx Ak Ujub

Condition: like new (used), “Pallmann PHPH 16-23 Grizzly” for Sale Also many other manufacturer like: Sandvik-Aubema / Hazemag / Ammann Amaro. Find our complete stock on our website. Gujdeggflyopfx Ak Usb Manufacturer: Pallmann Type: PHPH 16-23 Grizzly Rotor Dia.: 1.600mm Rotor Width: 2.300mm Electrical Motor: Included Included frame and feeders.

Year of construction: 2012, condition: like new (used), “LuT LTP 1000/700 SK” for Sale Find our complete stock on our website Manufacturer: LuT Guedpfeglvxwsx Ak Uob Type: LTP 1000/700 SK Year of Manufacture: 2012 Rotor Dia. x W.: 1.000 x 700mm Included: – 55 kW Electrical Motor – Inlet – Hydraulic pump with control panel – 500 kg Service Crane Spare-parts in stock! Crusher can be sandblasted and painted.

Condition: good (used), Year of construction: 2005, Manufacturer: Hazemag Type: AP-KH 1006 Rotor Dia. x W: 1.000 x 670mm. Inlet size: 690 x 350mm Gsdjwu Urdopfx Ak Ujub Included: – 55 KW E.motor – Control-cabinet – Hydraulic unit – Frame New Spare-parts in stock. See PDF-file below for more detailed information.

Condition: like new (used), Manufacturer: Sandvik / Aubema Type: 1712 / 10 Year of Manufacture: 1999 Mach. No.: 8519 Rotor Dia.: 1.200mm Rotor Width: 1.000mm Electrical Motor: Included Gujdpfsg Stt Rjx Ak Usb See PDF-file below for more detailed information.

Condition: used, “Hazemag APK 1313” for Sale Gujdpfewah E Iex Ak Usb Manufacturer: Hazemag Type: APK 1313 Rotor Dia: 1.300mm. Rotor Widthness: 1.340mm. Included Electrical Motor and Inlet See PDF-file below for more detailed information.

Condition: good (used), Manufacturer: LuT Metalltechnik GmbH Type: LTP 1300/1300 Rotor Dia. x W: 1.300 x 1.300mm. Inlet size: 1.360 x 1.000mm Included: Godpfjwu Uqyox Ak Ueub – 160 KW E.motor – Control-cabinet with softstarter New Spare-parts in stock. Crusher can be sandblasted and painted.

Condition: like new (used), Manufacturer: Thyssen / Krupp Type: KHP 130 /125 Electrical Motor: Included (200 kW) Rotor diameter: 1.300mm Rotor width: 1.250mm Guodpfsg I R Rusx Ak Uob Inlet: 1.370 x 990mm See PDF-file below for more detailed information. Included: – Inlet – Hydraulic system to open New spare-parts in stock.

Condition: new, power: 315 kW (428.28 HP), fuel type: electric, color: dark red, Year of construction: 2026, PRIMARY IMPACT CRUSHERS SERIES Easy maintenance with hydraulic system and safety devices Gsdpfxjwz Nbtj Ak Ueub • Inner body is covered with wear resistant replaceable lining plates • Body is manufactured from 20 - 30 mm steel sheet. Heat treated rotor for high capacity and speed resistance • Seamless coarse rock feeding with wide mouth opening • High rate of fine and cubic product output They are primary crushers that give maximum fine product output with high capacity especially in crushing low and medium hard stones. With the wide feeding mouth, they break the boulders by hitting the rotor, pallet and each other. They are crushers with low operating cost with replaceable lining plates, automatic lubrication system and high strength steel body.

Year of construction: 1980, condition: excellent (used), Complete line to make handles inclufing lathe - boring and sanding machine composed of : 1°machine : rotating machine for cutting the pieces. Max. length of pieces to cut : 1500 mm. The machine has a circular saw which cut the pieces up the max. length of 300 mm . 2°machine , Drilling macchine with automatic hopper feed. The cutting pieces by the 1st machine are loaded manually in the magazine (hopper ffeed) of the drilling machine and automatically transfered to the 3rd machine 3°machine: HEMPEL mod. FED 25 – Automatic rotating milling machine with shaped tools which make the handels. The type of handel depend of the tools mounted in the machine. 4° Machine : HEMPEL PB 300 Automatic totating sanding machine with automatic hopper feed . The pieces are manually insert on the hopper feed Daily production , from 5000 to 7000 pieces in 8 hour. Gjdpfxsidmt No Ak Usub Max length of working pieces 300 mm There are many shaped tools for different handle shape Machine are in perfectly working conditions.