Used Martin Dl 500 for sale (17,283)

Condition: used, This listing is for the HAWO HPL 500 Del Rotary Heat Sealer Guodpfx Ajxhgcxjfreh The unit is in full working condition and is ready for immediate use The HAWO HPL 500 D-V machines are considered to be best in class rotary heat sealers designed specifically for the industrial, medical and healthcare markets. The machines produce consistent and optimal seals for sensitive goods

Condition: used, Year of construction: 1993, 1500 mm tank diameter / tank height 1500 / 500 mm turning speed range 1500 U/min voltage 380 V volumn 300 Liter power requirement 18 kW Guedpfsxq Hg Aex Afrsh weight of the machine ca. 1,2 t dimensions 1,5 x 1,6 x 1,6 m Vibration dryer See ??pictures

Condition: used, Year of construction: 2016, Marel labeling machine Guodpfoxnkh Ssx Afrjh - Concept 500 - Top labeller More photos and full specifications: /

Condition: refurbished (used), Year of construction: 2017, functionality: fully functional, Manufacturer: Kallfass Verpackungsmaschinen GmbH Type: Bundle Wrapping Machine Super Wrap 500 Year of manufacture: 2017 Dimensions: approx. 2160 x 1340 x 2000 mm (LxWxH) Weight: approx. net 570 kg / gross 620 kg Technical data: Gsdpfsxl Dp Dox Afrouh Film: flat film, up to approx. 120 µm Film roll width: max. top 550 mm, bottom 550 mm Working height: 815 - 915 mm Passage width: 500 mm Passage height: 400 mm Electrical connection: 400 V three-phase Rated current: 7.2 A This particularly versatile banding machine operates with 2 flat film rolls. Product feed is fully automatic via an in-line conveyor belt. The sealing system is permanently heated, thermostat-controlled, and thus maintenance-free. The film rolls are simply placed on the machine, film feed is motorised. Inspection and demonstrations are possible at our premises by prior arrangement. Functional guarantee, no warranty.

Condition: good (used), Block DTT 10000 Transformer Manufacturer: Block Type: DTT 10000 10000 VA, 50-60 Hz Switching group: Dyn 5 Code: 9129 IP rating: 23 Primary: 500 V, 12A Secondary: 399/231 V Gujdexl Tbvspfx Afrjh 380/220 V 361/209 V 15.15 A H x W x D: 580 x 700 x 430 mm Weight: approx. 170 kg You can find more new and used items in our shop! International shipping costs available upon request!

Condition: refurbished (used), Year of construction: 2009, functionality: fully functional, travel distance X-axis: 525 mm, travel distance Y-axis: 400 mm, travel distance Z-axis: 450 mm, workpiece weight (max.): 1,000 kg, workpiece height (max.): 375 mm, General overhauled OPS Ingersoll Gantry 500 Wire EDM machine – in top technical and optical condition. The machine has been comprehensively and professionally overhauled in our workshop and is in very good condition both technically and visually. During the overhaul, the machine was disassembled by over 70%. All relevant wear parts were carefully inspected and replaced if necessary, including ball bearings and drive spindles. Subsequently, a complete geometric measurement, alignment, and additional check using a laser measuring system were performed. The machine bed and the entire base were thoroughly cleaned. All pumps were disassembled, cleaned, and overhauled. All hoses, including hydraulic and compressed air hoses, were completely replaced. In addition, the machine was completely repainted and is now in very good cosmetic condition. The generator and control unit were cleaned and technically inspected. The air conditioning unit of the generator was also cleaned to ensure reliable cooling and stable operation. Finally, the machine was subjected to an extensive erosion test according to the quality and testing specifications of OPS Ingersoll. The machine is immediately ready for operation and is ideal for reliable production. Technical data: Ingersoll (OPS Ingersoll) Gjdpfx Asyrqpfsfrjuh Wire EDM machine OPS INGERSOLL GANTRY EAGLE 500 Year of manufacture 2009 Control system EAGLE Powertec PC/NC 2060 MultiProg Powertec technology programming on PC/NC Powertec Easy Burn quick programming Powertec Handheld - multifunctional handheld device Manual erosion with Powertec Handheld High-speed jump max. 18 m/min Generator output 60 amps, EAGLE Powertec Travel ranges (X, Y, Z) 525 x 400 x 450 mm Electrode changer 20-position pick-up disc changer Work tank (W x D x H) 770 x 670 x 440 mm Work table (W x D) 750 x 650 mm Load capacity 1,000 kg Accessories: CO2 fire extinguishing system Integrated cartridge filter system Special equipment: Linear measuring system in all axes (Z as standard) 30.09

Condition: used, Year of construction: 1995, BIGLIA B 500 M LATHE MOTORIZED CENTERING DIAMETER: 210 mm Gujdpfx Asy A Eansfreh MAXIMUM MACHINABLE DIAMETER FROM BAR STOCK: 52 mm MAXIMUM MACHINABLE LENGTH: 500 mm TRAVELS: X: 220 mm Z: 500 mm Y (tailstock): 600 mm ACCESSORIES: No. 2 MOTORIZED, ADJUSTABLE BRAND: ALBERTI; No. 2 MOTORIZED, RADIAL; No. 3 MOTORIZED, AXIAL; VARIOUS MIXED FIXED TOOL HOLDERS CHIP CONVEYOR COMPLETE WITH DOCUMENTATION MACHINE IN PERFECT CONDITION YEAR 1995

Condition: excellent (used), FANUC 21-M Control With NC dividing head Guedpfx Afjy Hqyhsrjh Working travels 1020 x 510 x 575 mm Table size 1200 x 550 mm Spindle taper SK40 Spindle speeds 60-8'000 rpm Tool changer 24 Pos. Coolant through spindle Misc. accessories MARCELS MASCHINEN CH

Condition: new, Year of construction: 2026, functionality: fully functional, feed length X-axis: 500 mm, feed length Y-axis: 320 mm, feed length Z-axis: 420 mm, travel distance X-axis: 500 mm, travel distance Y-axis: 320 mm, travel distance Z-axis: 420 mm, spindle speed (max.): 8,000 rpm, total height: 2,530 mm, total width: 1,950 mm, total length: 2,600 mm, table width: 260 mm, table length: 800 mm, type of input current: three-phase, overall weight: 2,600 kg, input voltage: 400 V, warranty duration: 12 months, Equipment: documentation/manual, CNC MACHINING CENTER 532 Metal Technics Polska MTP CNC 532 SPECIAL OFFER - 5% DISCOUNT Gusdpoy Ht Axofx Afrjh Original price: €17,936 net EXW Discount: €896.80 SPECIAL PRICE: €17,039 NET EXW Year: 2026 Condition: New, fully functional Location: Sokołów Podlaski, Poland DESCRIPTION The MTP CNC 532 is a compact and precise vertical CNC machining center designed for milling, drilling and tapping of steel, aluminium, non-ferrous metals and engineering plastics. The machine features professional SIEMENS SINUMERIK 808 Advanced control, SIEMENS servo drives, precision linear guideways and ball screws. Its rigid construction provides excellent stability, accuracy and repeatability, making it suitable for CNC workshops, tool rooms, prototype production and small-to-medium series manufacturing. A fully enclosed working area protects the operator from chips and coolant, while the automatic lubrication system reduces maintenance requirements. TECHNICAL SPECIFICATIONS • Table: 800 x 260 mm • Spindle taper: BT30 (BT40 optional) • X/Y/Z travel: 500 / 320 / 420 mm • Spindle-to-table distance: 90-470 mm • Maximum spindle speed: 8000 rpm • Tool magazine: 10 positions • Rapid traverse X/Y/Z: 10 / 10 / 8 m/min • Working feed: 2.6-2500 mm/min • Servo torque X/Y/Z: 6 / 6 / 7.7 Nm • Positioning accuracy: +/- 0.02 mm • Repeatability: +/- 0.01 mm • Main motor: 3.7 kW • CNC control: SIEMENS SINUMERIK 808 Advanced • Servo drives: SIEMENS • Power supply: 400 V, three-phase • Dimensions: 2600 x 1950 x 2530 mm • Weight: 2600 kg STANDARD EQUIPMENT • SIEMENS SINUMERIK 808 Advanced CNC • SIEMENS servo drives • 8000 rpm spindle • 10-position automatic tool magazine • Fully enclosed working chamber • Precision linear guideways and ball screws • Automatic lubrication system • Pneumatic system • LED working-area lighting • 3-color status/alarm lamp • CE Declaration of Conformity • Technical and operating documentation APPLICATIONS Ideal for precision milling, drilling and tapping, prototype production, tool rooms, CNC workshops and serial manufacturing. TRANSPORT, WARRANTY & SERVICE Professional transport is available throughout Europe, with costs calculated individually according to destination. Free collection from our warehouse in Sokołów Podlaski is also available. The machine is supplied with a 12-month warranty, warranty service and spare-parts support. Post-warranty servicing and spare parts are also available. SPECIAL PRICE Original price: €17,936 net EXW 5% discount: -€896.80 SPECIAL PRICE: €17,039 NET EXW VAT applies where legally required. Metal Technics Polska Fabryczna 1, 08-300 Sokołów Podlaski, Poland Contact us for availability, transport quotation, additional photos, videos or an individual commercial offer.

Condition: used, Technical details: table length: 400 mm Guodpfx Afjwb D H Djrjh table width: 225 mm width:: 400 depth: 225 mm height: 300 mm dimension L-W-H: 400 x 225 x 300 mm weight: ca. 34 / Winkel kg 2 pieces available (price per piece) with slotted holes Material made of cast steel Surface finished *

Year of construction: 2014, condition: repair required (used), functionality: not functional, machine/vehicle number: M755, Technical characteristics: # Workspace: 1,130 × 860 × 1,080 mm (W × H × D) # Tank capacity: 420L # Mechanical weight: 1,900 Kg Electrical Equipment # Power supply: 400 VAC, 3-phase, 50 Hz # Generator output: From 3 kW up to >100 kW (with pulse technology) Dimensions # Machine dimensions (L×W×H): 2,100 × 2,000 × 2,600 mm Equipment consists of: # Main machine, electrolyte filtration system, industrial cooler, electrolyte treatment (CR-6 elimination) # Dosing unit for electrolyte # Control system: Siemens S7-300 with Visual WIN CC/User-friendly interface: Touch panel with integrated tool menu # Communication module for tooling requirements: up to 8 signals # Safety features: Light curtain or sliding door for operator protection Gedpfx Asxwmikefrouh # Process monitoring: Real-time data tracking and short-circuit detection Machine status: NOT WORKING # Safety Light barrier # Communication module Festo # Pump for filtration system

Condition: used, Year of construction: 2020, Orangeworks Stainless Steel Mixer Tank Qty 2 in stock Capacity 500 LTS Load cells Mixer Gsdpfx Afowq Sz Ujrsuh Ancillary equipment included

Year of construction: 2026, condition: new, The ProFruit UNLOADER 500 is a hydraulic bin tipper for lifting and emptying fruit, vegetable and berry bins into washing, sorting, crushing or conveying equipment. Operation The bin is positioned inside the tipping cradle. The hydraulic system raises and rotates the cradle, discharging the product directly into the receiving machine or conveyor. An enclosed cradle with high side walls guides the product and supports the bin during tipping. Operation is controlled by separate Start, Stop and emergency-stop buttons together with a manual UP/DOWN lever. Key features • Hydraulic lifting and tipping system • Enclosed tipping cradle for controlled discharge • Open front for convenient bin positioning and removal • Adjustable supporting feet Gedez Ndy Ajpfx Afreuh • Suitable for integration into fruit and vegetable processing lines Technical specifications • Product types: fruit, vegetables and berries • Discharge applications: washing, sorting, crushing and conveying equipment • Controls: Start, Stop, emergency stop and manual UP/DOWN lever • Construction: stainless steel Hygiene and cleaning The stainless-steel construction is suitable for food-processing environments, while the open-front design provides accessible bin handling around the tipping cradle.

Condition: used, Year of construction: 2001, Transnorm rising falling Incline belt conveyor GF 6000-600-500 RA2066 Technical data: Gedjn I Uwfjpfx Afrjuh Conveyor length (NL): 6000 mm (4200 mm + 1800 mm) frame width (NB): 600 mm, 700 mm with motor belt width (GuB): 500 mm Overall height (BH): 80 mm, 430 mm with motor Angle: freely adjustable between 0 and 15° Supporting feet: optionally available Conveying speed (v m/s): 0,33 Drive: SEW gear motor, R27 DT80N4/BMG Electrical data: 50Hz V380-500, kW 0,75 S1 Drive drum: Ø = 81 mm Belt return roller: Ø = 81 mm Optionally available: Supports Side guide on one side and on both sides Frequency converter for stepless speed change Adjust length (longer/shorter) Prices net plus VAT ex central warehouse Dr. Sonntag GmbH & Co KG, 97076 Würzburg, Germany For individual, professional advice, simply contact us. Simply contact us by phone or e-mail. We will be happy to help you with the planning and implementation of your projects. We look forward to hearing from you. With kind regards Your team at Dr. Sonntag GmbH & Co. KG Your specialist and contact for intralogistics

Condition: used, Year of construction: 2014, Transnorm conveyor belt GF 2670-600-500 RA2068 Technical data: Conveyor length (NL): 2670 mm frame width (NB): 600 mm, 700 mm with motor belt width (GuB): 500 mm Overall height (BH): 80 mm, 430 mm with motor Supporting feet: optionally available Conveying speed (v m/s): 0,67 Drive: SEW gear motor R17 DT71D4/Th Electrical data: 50Hz V380-500, kW 0,37 S1 Drive drum: Ø = 81 mm Belt return roller: Ø = 81 mm Optionally available: Supports Side guide on one side and on both sides Frequency converter for stepless speed change Adjust length (longer/shorter) Prices net plus VAT ex central warehouse Dr. Sonntag GmbH & Co KG, 97076 Würzburg, Germany Gjdon I Uwmopfx Afreuh For individual, professional advice, simply contact us. Simply contact us by phone or e-mail. We will be happy to help you with the planning and implementation of your projects. We look forward to hearing from you. With kind regards Your team at Dr. Sonntag GmbH & Co. KG Your specialist and contact for intralogistics

Condition: used, Year of construction: 2001, Transnorm conveyor belt GF 12330-600-500 RA2072 Gujdpon R Uatjfx Afreh Technical data: Conveyor length (NL): 12330 mm frame width (NB): 600 mm, 700 mm with motor belt width (GuB): 500 mm Overall height (BH): 80 mm, 430 mm with motor Supporting feet: optionally available Conveying speed (v m/s): 0,25 Drive: SEW gear motor R27 DT80N4 Electrical data: 50Hz V380-500, kW 0,75 S1 Drive drum: Ø = 81 mm Belt return roller: Ø = 81 mm Optionally available: Supports Side guide on one side and on both sides Frequency converter for stepless speed change Adjust length (longer/shorter) Prices net plus VAT ex central warehouse Dr. Sonntag GmbH & Co KG, 97076 Würzburg, Germany For individual, professional advice, simply contact us. Simply contact us by phone or e-mail. We will be happy to help you with the planning and implementation of your projects. We look forward to hearing from you. With kind regards Your team at Dr. Sonntag GmbH & Co. KG Your specialist and contact for intralogistics

Condition: used, Year of construction: 1998, Transnorm conveyor belt GF 5700-600-500 RA2091 Technical data: Conveyor length (NL): 5700 mm frame width (NB): 600 mm, 700 mm with motor belt width (GuB): 500 mm Overall height (BH): 80 mm, 430 mm with motor Supporting feet: optionally available Conveying speed (v m/s): Contact us and we will try to meet your preferred conveying speed. Drive: SEW gear motor R32DT71D4 Electrical data: 50Hz V380-500, kW 0,37 S1 Drive drum: Ø = 81 mm Belt return roller: Ø = 81 mm Optionally available: Supports Side guide on one side and on both sides Frequency converter for stepless speed change Adjust length (longer/shorter) Prices net plus VAT ex central warehouse Dr. Sonntag GmbH & Co KG, 97076 Würzburg, Germany For individual, professional advice, simply contact us. Simply contact us by phone or e-mail. We will be happy to help you with the planning and implementation of your projects. We look forward to hearing from you. Guedpon U Dymsfx Afreh With kind regards Your team at Dr. Sonntag GmbH & Co. KG Your specialist and contact for intralogistics

Condition: used, Year of construction: 1998, Transnorm conveyor belt GF 19480-600-500 RA2107 Technical data: Conveyor length (NL): 19480 mm frame width (NB): 600 mm, 700 mm with motor belt width (GuB): 500 mm Overall height (BH): 80 mm, 430 mm with motor Supporting feet: optionally available Conveying speed (v m/s): Contact us and we will try to meet your preferred conveying speed. Drive: SEW gear motor, R40 DT80N4 Electrical data: 50Hz V380-500, kW 0,75 S1 Drive drum: Ø = 81 mm Belt return roller: Ø = 81 mm Optionally available: Supports Side guide on one side and on both sides Frequency converter for stepless speed change Adjust length (longer/shorter) Prices net plus VAT ex central warehouse Dr. Sonntag GmbH & Co KG, 97076 Würzburg, Germany For individual, professional advice, simply contact us. Simply contact us by phone or e-mail. We will be happy to help you with the planning and implementation of your projects. Gusdpfx Afspdv N Njrsh We look forward to hearing from you. With kind regards Your team at Dr. Sonntag GmbH & Co. KG Your specialist and contact for intralogistics

Condition: used, Year of construction: 2001, Lippert Belt Conveyor Belt Conveyor Aligner Conveyor Sorter GF 2640-650-500 Gusdera Emtspfx Afrjh RA2048 Technical data: Conveying length (NL): 2640 (1340 + 650 + 650) mm Framework width (NB): 1300 mm belt width (GuB): 500 mm height (BH): 540 to 860 mm support feet: includet Conveying speed (v m/s): 0,8 m/s Drive: SEW gear motor Electrical data: 50Hz V380-500, kW 0.075 / 0.37 / S1 Deflection roller (UR): Ø = 82 mm Drive drum (AT): Ø = 82 mm Slide travel: 370 mm Year of construction: 2001 Optionally available: controlling/Software Frequency Converters Prices net plus VAT from central warehouse Dr. Sonntag GmbH & Co KG, 97076 Würzburg For individual, professional advice, simply contact us. Simply contact us by phone or e-mail. We will be happy to help you with the planning and implementation of your projects. We look forward to hearing from you. With kind regards Your team at Dr. Sonntag GmbH & Co. KG Your specialist and contact for intralogistics

Condition: used, Year of construction: 2014, Transnorm conveyor belt GF 2300-600-500 RA2057 Technical data: Conveyor length (NL): 2300 mm frame width (NB): 600 mm, 700 mm with motor belt width (GuB): 500 mm Overall height (BH): 80 mm, 430 mm with motor Supporting feet: optionally available Conveying speed (v m/s): Contact us and we will try to meet your preferred conveying speed. Drive: SEW gear motor, R40 DT80N4 Electrical data: 50Hz V380-500, kW 0,75 S1 Drive drum: Ø = 81 mm Belt return roller: Ø = 81 mm Optionally available: Supports Side guide on one side and on both sides Frequency converter for stepless speed change Adjust length (longer/shorter) Gujdonp Uhyopfx Afrjh Prices net plus VAT ex central warehouse Dr. Sonntag GmbH & Co KG, 97076 Würzburg, Germany For individual, professional advice, simply contact us. Simply contact us by phone or e-mail. We will be happy to help you with the planning and implementation of your projects. We look forward to hearing from you. With kind regards Your team at Dr. Sonntag GmbH & Co. KG Your specialist and contact for intralogistics

Condition: used, Year of construction: 2001, Lippert belt conveyor GF 780-650-500 RA1430 The Lippert conveyor belt is from 2001 and in good (used) condition. Lateral guides and/or light barriers can be installed on request at extra cost. Supports are not included in the delivery. These are optionally available on request. The pictures of the conveyor system shown here were taken in a logistics center while still installed. Technical data: Conveying length (NL): 780 mm Framework width (NB): 650 mm belt width (GuB): 500 mm Gujdek Abumjpfx Afroh height (BH): 105 mm support feet: optionally available Conveying speed (v m/s): with frequency converte adjustable Drive: SEW gear motor R17DT71D4/MM03/BW1 Electrical data: 50Hz V380-500, kW 0.075 / 0.37 / S1 Deflection roller (UR): Ø = 34 mm Drive drum (AT): Ø = 81 mm Belt: Type SNB-5E Year of construction: 2001 Optionally available: motor with MOVIMOT frequency inverter to control the speed Supports Side guide one and both sides Prices net plus VAT from central warehouse Dr. Sonntag GmbH & Co KG, 97076 Würzburg For individual, professional advice, simply contact us. Simply contact us by phone or e-mail. We will be happy to help you with the planning and implementation of your projects. We look forward to hearing from you. With kind regards Your team at Dr. Sonntag GmbH & Co. KG Your specialist and contact for intralogistics

Condition: used, Year of construction: 2014, Transnorm conveyor belt GF 11380-600-500 RA2095 Technical data: Conveyor length (NL): 11380 mm frame width (NB): 600 mm, 700 mm with motor belt width (GuB): 500 mm Overall height (BH): 80 mm, 430 mm with motor Supporting feet: optionally available Conveying speed (v m/s): Contact us and we will try to meet your preferred conveying speed. Drive: SEW gear motor, SA37/T DRS71M4/MM07/LN Guedjrzd Alopfx Afreh Electrical data: 50Hz V380-500, kW 0,75 S1 Drive drum: Ø = 81 mm Belt return roller: Ø = 81 mm Optionally available: Supports Side guide on one side and on both sides Frequency converter for stepless speed change,13 - 32 m/min Adjust length (longer/shorter) Prices net plus VAT ex central warehouse Dr. Sonntag GmbH & Co KG, 97076 Würzburg, Germany For individual, professional advice, simply contact us. Simply contact us by phone or e-mail. We will be happy to help you with the planning and implementation of your projects. We look forward to hearing from you. With kind regards Your team at Dr. Sonntag GmbH & Co. KG Your specialist and contact for intralogistics

Condition: used, Year of construction: 1998, Transnorm Rising falling Incline belt conveyor GF 4900+4100-600-500 RA2193 Technical data: Conveyor length (NL): 9000 mm ( 4900 mm + 4100 mm ) frame width (NB): 600 mm, 700 mm with motor belt width (GuB): 500 mm Overall height (BH): 80 mm, 430 mm with motor Angle: freely adjustable between 0 and 15° Supporting feet: optionally available Conveying speed (v m/s): Contact us and we will try to meet your preferred conveying speed. Guodpoq H T Spjfx Afroh Drive: SEW gear motor Electrical data: 50Hz V380-500, kW 0,75 S1 Drive drum: Ø = 81 mm Belt return roller: Ø = 81 mm Optionally available: Supports Side guide on one side and on both sides Frequency converter for stepless speed change Adjust length (longer/shorter) Prices net plus VAT ex central warehouse Dr. Sonntag GmbH & Co KG, 97076 Würzburg, Germany For individual, professional advice, simply contact us. Simply contact us by phone or e-mail. We will be happy to help you with the planning and implementation of your projects. We look forward to hearing from you. With kind regards Your team at Dr. Sonntag GmbH & Co. KG Your specialist and contact for intralogistics

Condition: used, Year of construction: 2005, Dematic roller curve left 90°-500-440 IR795 RA2351 Make: Dematic Running direction: 90° left running Roller width (RB): 440 mm conical, plastic coating Nominal/outer width (NB): 500 mm Inner radius (IR): 795 mm 3x 300-500V Height frame: 132 Height including motor: 275 Gear motor: SEW WF20 DT71D4/Z/MM03/BW1 Conveyor speed: 0.6 m/s Optionally available supports side guides Frequency inverter for infinitely variable speed control Price plus VAT ex central warehouse Dr. Sonntag GmbH & Co. KG 97076 Würzburg Gusdpsvu Ihyofx Afrsh For individual, expert advice, simply get in touch with us. Simply contact us by phone or email. We will be happy to help you plan and implement your projects. We look forward to hearing from you. With kind regards Your team at Dr. Sonntag GmbH & Co. KG Your specialist and contact for intralogistics

Condition: used, Legi-Air 4040Z with Zebra110pax4 label printer and pneumatic stamp. RA1933 Printer manufacturer: Zebra Printer type 110pax4 Godpjk Abllofx Afrouh Control panel: LCD display with status indicator and buttons Print type: thermal transfer printing or direct thermal printing selectable Interfaces: RS 232 Seriel, IEEE 1284 Print media: standard media, tags and RFID media (reading and coding of RFIF labels) label length min: 12,7mm width print media: 16-114mm ribbon width: 25,4-107mm Ribbon length max: 900m Roll size diameter core: 25,4mm Roll size maximum diameter: 101.6mm Resolution: 203 dots/inch (8 dots/mm) dot size 0,125mm x 0,125mm Print speed: 12 inch/second