Used Mitutoyo Crysta-Apex S9108 for sale (215)

Condition: used, Year of construction: 2023, controller manufacturer: Sonstige, controller model: Formtracepak V6.1, _____ Description: Year of manuf. : 2023 Technical Data: Movement in X/Z:100/500 mm Clampingsurafce:600 x 450 mm Hedpfey Dy A Tex Ak Djl Crossslide (X/Y):100/50 mm Equipment/Accessory: Formtracer:FTA-H4 D3000-D Contracer:C-3200 Surftest:S-3000 Operation:Control unit with Joystick Weiteres Zubehör:Turnable vice, calibration blocks, Protective tarpauline

Condition: excellent (used), For sale: Professional digital height gauge Mitutoyo (model 192-613) – Japanese precision and reliability in a single device. Ideal for workshops, quality control, and precise measurements. Specification: • Measuring range: 0–300 mm • LCD display – clear readings even in low light • Functions: ZERO/ABS, PRESET, HOLD Hedpfx Asw N Hn Sjk Dsl • Power supply: CR2032 battery • Stable base ensuring secure support and accurate measurement • Original – Made in Japan Condition: Device is fully functional and well maintained,

Condition: excellent (used), Professional height gauge from the renowned Japanese manufacturer Mitutoyo. The device is designed for precise height measurement and scribing on surface plates. This model offers a measuring range up to 600 mm and is equipped with a dial indicator and fine micrometric adjustment, ensuring very precise dimensional control. The robust construction and high-quality workmanship characteristic of Mitutoyo guarantee repeatable and reliable measurements. — Technical data: • Manufacturer: Mitutoyo (Japan) • Measuring range: 600 mm • Mitutoyo dial indicator • Indicator scale division: 2.5 µm • Micrometric adjustment • Stable, heavy base • Clear measuring scale — Applications: • Measurement of component heights • Scribing on granite surface plates • Dimensional inspection • Workshops, tool rooms, quality control departments — Condition: Used, in good technical condition. Shows normal signs of use. Sold exactly as shown in the photos. Hodpfx Akjy Dirqs Djl — Scope of delivery: • Mitutoyo height gauge • Dial indicator • Micrometric adjustment mechanism

Condition: new, For sale: Professional MITUTOYO measuring set, manufactured by the renowned Japanese precision measurement systems company. 📦 Set includes: - MITUTOYO AT103 measuring scale - Mitutoyo module / transducer (Part No. 09AAA198) - Signal cables - Flexible cable in metal sheath - Documentation, manuals - Original packaging ⚙️ Data / Information: - Manufacturer: MITUTOYO (Japan) - Model: AT103 - Application: CNC machines, automation, measuring systems - High measurement accuracy - Professional industrial-grade equipment 🛠️ Condition: - NEW – old stock (NOS) - Unused, stored in warehouse - Packaging may show signs of transport/storage 💎 Advantages: - Original Mitutoyo product – top quality - Complete set ready for installation - Ideal for CNC machinery / automation - Very high precision and durability - Industrial equipment – not a retail-market item 📌 Additional Information: Hjdpfx Aksy Agbmo Djl - Sold exactly as shown in the photos - Worldwide shipping available

Condition: like new (used), Year of construction: 2020, functionality: fully functional, machine/vehicle number: 62286233, measuring range X-axis: 400 mm, measuring range Y-axis: 400 mm, measuring range Z-axis: 200 mm, total width: 1,303 mm, total length: 776 mm, total height: 1,004 mm, overall weight: 324 kg, workpiece weight (max.): 20 kg, Equipment: documentation/manual, 📏 As New Mitutoyo QV Active 404 CNC Vision Measuring System for Sale – High-Precision, Non-Contact Metrology Upgrade your inspection capabilities with the Mitutoyo QV Active 404, a cutting-edge CNC vision measuring system designed for fast, accurate, and repeatable 2D and 3D non-contact measurements. This used unit offers premium Mitutoyo performance at a cost-effective price—ideal for precision manufacturing, quality control labs, and R&D environments. Condition: Never Used – Still in original crates 🔧 Product Overview – Mitutoyo QV Active 404 The Mitutoyo Quick Vision Active 404 is part of Mitutoyo’s renowned Quick Vision series, combining fast automatic measurement, superior accuracy, and flexible lighting systems. It’s equipped with CNC stage movement, a high-resolution camera, and QVPAK software, providing automated, high-accuracy vision-based inspection in one compact footprint. This machine is still in its original crates and is in as new condition, making it a perfect solution for any business requiring advanced metrology tools without the cost of new equipment. ✅ Key Features of the Mitutoyo QV Active 404 📐 Automatic 3-Axis Measurement (X/Y/Z) with CNC stage 🔍 Non-Contact Vision Measurement – Ideal for fragile or micro-scale parts 🧠 QVPAK Software – Industry-leading metrology software for automated routines, reporting, and part programming 💡 Advanced Illumination System – Includes ring light, coaxial light, and programmable sub-stage lighting 🔧 Motorized Zoom Lens for flexible magnification and measurement precision 🖥️ Real-Time Edge Detection for ultra-precise dimensional analysis 📐 Technical Specifications Measurement Range: X400mm / Y400mm / Z200mm Vision Head Range: 400x400x200mm Size of Stage Glass: 466x480mm Max Stage Loading: 20kg Resolution: 0.1 µm Accuracy (E1): ±(2.5 + 4L/1000) µm Touch Probe Accuracy: (2.4+3L/1000) µm Stage Type: Motorized CNC, granite base Camera: High-resolution digital CCD Lighting System: Multi-source - ring, coaxial, contour Magnification Change System: Zoom optical system with 8 positions Lens System: Motorized zoom Sensor Type: High resolution CMOS colour camera Software: Mitutoyo QVPAK Machine Dimensions: 776x1303x1004mm Weight including Stand: 324kg 🧰 Perfect For Precision component manufacturers Aerospace, automotive, medical device inspection Electronics & PCB measurement R&D and dimensional analysis labs Tool & die makers and high-accuracy workshops 📦 What’s Included Used Mitutoyo QV Active 404 CNC Vision Measuring System Machine Stand Work Station Master Ball Stand MCR Attaching Plate Calibration Ring QVPAK Software Dell Computer Wide Screen Monitor Printer Used Mitutoyo QV Active 404 for sale Mitutoyo vision measuring system CNC non-contact measuring machine Hjdpfx Akowqrvlj Del QVPAK software system Pre-owned Mitutoyo CMM Vision metrology machine UK / EU Mitutoyo Quick Vision Active measuring device Notes: *Specifications are given in good faith but not guaranteed*

Condition: used, Year of construction: 2015, functionality: fully functional, We offer this used Mitutoyo QVT1-X404P1L-D coordinate measuring machine, year of manufacture 2015. Model: QVT1-X404P1L-D Code No.: 364-180SY SO No.: Serial No.: 60866040 Year of manufacture: 2015 Software: version 13.2 including FORMPAK v5.4 The machine includes 7 different measuring heads as well as mounting materials for sample holders. If you have any questions or need further information, please feel free to send us a message or call us. Hodsx Tiihopfx Ak Dsl

Condition: used, Various micrometers from different manufacturers Pos1 Manufacturer: Tesa Measuring range: 0 – 25 mm Scale division: 0.01 mm Pos2 Manufacturer: Tesa Swiss Made Measuring range: 100 – 125 mm Scale division: 0.01 mm Pos3 Manufacturer: Unknown Measuring range: 25 – 50 mm Scale division: 0.01 mm Pos4 Manufacturer: Tesa Measuring range: 0 – 25 mm Scale division: 0.01 mm Locking screw defective Pos5 Manufacturer: Hommel Werke Measuring range: 25 – 50 mm Scale division: 0.01 mm Pos6 Manufacturer: Mahr Messtechnik Measuring range: 70 – 95 mm Scale division: 0.01 mm Pos7 Manufacturer: Tesa Measuring range: 0 – 25 mm Scale division: 0.01 mm Pos8 Manufacturer: Mahr Measuring range: 120 – 145 mm Scale division: 0.01 mm Pos9 Manufacturer: Mahr Measuring range: 120 – 145 mm Scale division: 0.01 mm Pos10 Manufacturer: Mahr Measuring range: 120 – 145 mm Scale division: 0.01 mm Pos11 Manufacturer: Tesa Measuring range: 75 – 100 mm Scale division: 0.01 mm Locking screw missing Pos14 Manufacturer: J.E. Reinecker Chemnitz Measuring range: 100 – 125 mm Scale division: 0.01 mm Pos16 Manufacturer: Mahr Measuring range: 170 – 195 mm Scale division: 0.01 mm Pos17 Manufacturer: Mahr Measuring range: 170 – 195 mm Scale division: 0.01 mm Pos19 Manufacturer: Hommel Werke Measuring range: 200 – 225 mm Hedsyhmwqopfx Ak Del Scale division: 0.01 mm Pos23 Manufacturer: Mahr Measuring range: 145 – 170 mm Scale division: 0.01 mm Pos26 Manufacturer: Kern Measuring range: 0 – 25 mm Scale division: 0.01 mm Pos28 Manufacturer: Unknown Measuring range: 70 – 95 mm Scale division: 0.01 mm Pos29 Manufacturer: Unknown Measuring range: 25 – 50 mm Scale division: 0.01 mm Pos30 Manufacturer: Mitutoyo Measuring range: 25 – 50 mm Scale division: 0.01 mm Pos35 Manufacturer: Mahr Measuring range: 120 – 145 mm Scale division: 0.01 mm Pos36 Manufacturer: Mahr Measuring range: 145 – 170 mm Scale division: 0.01 mm Pos37 Manufacturer: Mahr Measuring range: 170 – 195 mm Scale division: 0.01 mm Pos38 Manufacturer: Steyr Measuring range: 150 – 175 mm Scale division: 0.01 mm Pos39 Manufacturer: Steyr Measuring range: 175 – 200 mm Scale division: 0.01 mm Pos40 Manufacturer: PAV Measuring range: 250 – 275 mm Scale division: 0.01 mm Thread micrometers – screw micrometers Micrometer - Frame micrometers – measuring instrument e.g. for gear measurement – external measurement tool – disc micrometer – precision micrometer – precision measuring instrument – frame micrometer Price per piece: €35 net, ex-works, plus packaging costs Subject to errors and omissions in all technical data. Sale exclusively to countries within the EU.

Condition: like new (used), Year of construction: 2022, operating hours: 1 h, functionality: fully functional, measuring range X-axis: 100 mm, measuring range Z-axis: 500 mm, warranty duration: 19 months, total height: 1,170 mm, type of input current: AC, total width: 600 mm, total length: 850 mm, travel distance X-axis: 100 mm, travel distance Z-axis: 500 mm, overall weight: 250 kg, input voltage: 230 V, table width: 450 mm, table height: 110 mm, table length: 600 mm, feed length X-axis: 100 mm, feed length Z-axis: 500 mm, Equipment: documentation/manual, type plate available, We are offering this nearly new Mitutoyo Avant FTA - H4 D4000-D contour/roughness measuring instrument, year of manufacture (2022). According to the nameplate, the machine was built in 2022 but was only delivered to us and put into operation for the first time in November 2025. It has been used once since then and is therefore like new. Hsdpfx Akjy Dcfkj Dsl All original accessories are included, as well as the transport cases for both measuring arms. The software key is also provided. If you have any questions or require further information, please feel free to send us a message or give us a call.

Condition: excellent (used), Year of construction: 2001, functionality: fully functional, Description: Mitutoyo Hjdpfx Astxyv Ijk Djl Manufacturer: Mitutoyo Type: CV-500 The Contracer is complete with PC, software, monitor and vice.

Condition: good (used), Year of construction: 2018, functionality: fully functional, MITUTOYO Contracer CV-2100M4 contour measuring device Horizontal measuring range X = 100mm Vertical measuring range Z = 50mm Column travel range Z2 = 350mm Inclination +/- 45° Dimensions (W, D, H) 745mm x 450mm x 885mm Total weight approx. 150kg Hodpsvun Tpsfx Ak Dol Incl. PC system, Incl. cross table 218-001 Incl. rotating vice 2028-003

Condition: excellent (used), For sale: Professional measuring set from the Japanese company Mitutoyo, model SBM-25CXST (cat. no. 568-925). This set is designed for precision measurement of hole diameters and cylindrical parts in the range from 12 to 25 mm. Set contents: Mitutoyo ABSOLUTE Digimatic digital bore gauge with LCD display; Three measuring heads: 12–16 mm, 16–20 mm, 20–25 mm; Setting rings: Mitutoyo 19.997 mm and HK66 19.001 mm; Extension rods and additional accessories; Original Mitutoyo wooden case with custom foam insert. The ABSOLUTE system ensures stable measurements and no need for re-zeroing every time the device is switched on. Digital readout provides quick and reliable measurements with high accuracy. The set is in very good condition, complete and ready for use. Ideal for measurement laboratories, quality control, and tool workshops. Hsdpfjw R E Hvex Ak Dol

Condition: excellent (used), For sale: professional portable surface roughness tester Mitutoyo SJ-210 manufacturer code: 178-560-01D drive: 0.75 mN Made in Japan Device for precise measurement of surface roughness according to ISO 1997. Condition: Used, in very good technical and visual condition. Fully functional. Display without any damage. Complete set as shown in the photos. Included: – SJ-210 measurement unit – standard drive attachment – Mitutoyo 178-601 reference specimen – power supply – cables – original carrying case – original packaging The device measures, among others: Ra Hsdpfx Aeyc Rwdsk Djl Rz parameters compliant with ISO standards Ideal for: – quality control – CNC companies – tool shops – technical departments – measurement laboratories Industrial-grade equipment – this is not a budget laboratory version.

Condition: excellent (used), Year of construction: 2018, functionality: fully functional, machine/vehicle number: 400181806, Mitutoyo CV-3200H4 CONTOUR MEASURING CONTRACER; MFG: 2018, code no.: 218-482-10D, SN: 400181806, made in Japan. Expands measurement range while reducing workpiece interference Mitutoyo’s newly designed detector arm lowers workpiece interference while expanding the measurement range in the Z1 axis (detector). Auto stop feature assures safety even during high-speed movement The detector includes a safety mechanism (auto stop upon collision) to assure measurement safety even during high-speed movement. If the arm is removed or shifts during measurement, the safety mechanism is triggered and stops the machine. Measuring range: X axis -100mm Measuring range: Z2 axis (column) travel range 3 - 60mm (±30mm in horizontal situation) Z2 axis (column) travel range 3 - 500mm Detector (Z1 axis (detector unit)) Scale unit - Arc scale Resolution 0.04µm Stylus up/down motion: arc movement Measuring direction: both pulling and pushing directions Measuring face direction: downward or upward Measuring force: 30mN (by adjusting weight) Stylus traceable range: Ascent 77°; Stylus traceable range: Descent 83° (with one-sided cut stylus: standard accessory); Drive unit Scale unit Separate type linear encoder Z2 axis (column) ABS encoder Resolution X axis 0.05µm Resolution Z2 axis (column)1µm Drive speed X axis 0 – 80mm/s and manual operation Drive speed Z2 axis (column) 0 – 30mm/s and manual operation Measuring speed X axis 0.02 – 20mm/s; Straightness (when the X axis is horizontal) X axis 0.8µm/100mm Hsdswz Sxnopfx Ak Dsl X axis inclination angle: X axis ±45° Accuracy (20°C) CV-3200 X axis ±(0.8 + 0.01L) µm L = Drive length (mm) Wide range: 1.8µm/100mm Narrow range: 1.05µm/25mm; Accuracy (20°C) CV-3200 X Z1 axis (column) ± (1.4 + | 2H | /100) µm H = Measurement height from the horizontal position; External dimensions (W×D×H): Main unit: 756×482 ×1166mm External dimensions (W×D×H): Controller: 221×344×490mm External dimensions (W×D×H): Remote box: 248×102×62.2mm Mass: Main unit: 150kg Mass: Controller: 14kg Mass: Remote box: 0.9kg Operating temperature range: 15 – 25°C (within ±1K temperature fluctuation on calibration and measurement) Operating humidity range: 20 – 80%RH (with no condensation) Rvcunpih32 Storage temperature range: −10 to 50°C Storage humidity range: 5 – 90%RH (with no condensation) Price Euro 15.900 Euro + VAT, negotiable, ExWorks Simeria, Romania. Please make an offer. Irrtum, Anderungen und Zwischenverkauf vorbehalten / Subject to errors, changes and prior sale /

Condition: excellent (used), Year of construction: 2011, 1.0 pc. used image processing measuring device Manufacturer: MITUTOYO Model: QS200Z Year of manufacture: 2011 Hedpjyxxy Tjfx Ak Dsl Technical data: see photos.

Condition: used, Professional granite surface plate – renowned quality by Mitutoyo / Planolith (Made in Germany). Ideal for use in quality control, tool shops, and metrology. ⸻ Specifications: • Plate dimensions: approx. 1200 x 800 mm • Thickness: approx. 170 mm • Weight: approx. 460 kg • Accuracy class: DIN 876/0 (high precision) • Permissible deviation: 0.009 mm • Actual deviation: 0.00273 mm • Manufacturer: Planolith GmbH / Mitutoyo • Country of manufacture: Germany • Includes: solid steel stand ⸻ Advantages: Very high measurement accuracy Stable construction – heavy granite dampens vibrations Ideal for measurements, marking out, and component inspection Professional equipment Ready for use ⸻ Hodpfx Aoyw Ubqsk Dol Condition: Used item – shows normal signs of wear (scratches visible on the surface), but is fully functional and maintains its specification parameters.

Condition: ready for operation (used), 1 set (5 pieces) of micrometers, in wooden case Sizes: 0 - 25, 25 - 50, 50 - 75, 75 - 100, 100 - 125, 125 - 150 mm Hedpfx Asx Anp Njk Dol

Condition: used, Reading type . 0 weight - pallet system . kg length . mm 1 Posten Bügelmessschrauben 400-500 mm 700-800 mm 800-900 mm Hodpoyycxvefx Ak Dsl 900-1000 mm The technical data is provided by the manufacturer or operator and is therefore non-binding. We reserve the right to sell the machine prior to purchase; our terms and conditions of sale apply exclusively. About us More than 400 of our own machines in stock Over 15,000 m² of storage space, 70 t crane capacity More than 10,000 items and accessories for your workshop If you are interested in selling machines, production lines, or your business, please contact us. You can find further offers on our website. Tours are possible by appointment. We look forward to your visit.

Condition: ready for operation (used), Year of construction: 2020, total height: 1,529 mm, total width: 776 mm, travel distance X-axis: 400 mm, travel distance Y-axis: 400 mm, travel distance Z-axis: 200 mm, overall weight: 324 kg, number of axes: 3, This 3-axis Mitutoyo QV-L404Z1L-D was manufactured in 2020. It features an X-axis travel of 400 mm, Y-axis travel of 400 mm, and Z-axis travel of 200 mm. The machine is equipped with advanced measurement capabilities, including video and touch probe measurement methods. If you are looking to get high-quality measurement capabilities, consider the Mitutoyo QV-L404Z1L-D CMM machine we have for sale. Contact us for further details. • Last calibration: 06 September 2022 • X-axis travel: 400 mm • Y-axis travel: 400 mm • Z-axis travel: 200 mm • Resolution: 0.1 µm (0.0001 mm) • Length measurement accuracy XY: (2 + 3L/1000) µm • Length measurement accuracy Z: (3 + 5L/1000) µm • Length measurement accuracy E2XY: (2.5 + 4L/1000) µm • Machine depth: 1303 mm • CNC control: Yes Hedpeyvqqfofx Ak Djl • Control software: QVPak V13.3 • Operating system: Windows 10 64-bit • Measurement display: 3D graphical measurement display • Programming interface: EasyEditor • Edge detection: Advanced recognition algorithms • Camera type: High-resolution CMOS color camera • Communication: USB 3.0 • Zoom system: 7-step zoom lens • Measurement methods: Video measurement; Touch probe measurement; Multi-sensor measurement; Automatic measurement sequences • Measurement capability: Micro and nano feature measurement Additional equipment • Touch probe type: TP20 • Probe modules: 2 standard force modules • Probe module type: TP20 standard force • Stylus holder: 5-way holder • Stylus length: 13 mm • Stylus diameter: 10 mm • Probe changer: MCR20 • Probe changer capacity: 3 ports • Calibration ring: Ø20 mm • Reference sphere: Ceramic master ball Ø15 mm • Machine stand: QVST-4L • Power cable: CH type 1.8 m • Computer type: Dell Precision workstation • Processor: Intel Xeon W-2223 3.6 GHz • Monitors: 2× Dell UltraSharp U2421E • Additional software: QV Partner Manager V3.1 • Statistical software: MeasLink Real-Time Professional V9

Condition: not inspected (used), functionality: unexamined, total height: 50 mm, total width: 200 mm, total length: 350 mm, overall weight: 7 kg, No minimum price – guaranteed sale to the highest bidder! Placing a bid obligates timely collection between 04.05.26 and 07.05.26. TECHNICAL DETAILS Measuring range: 1.001 to 100 mm MACHINE DETAILS Dimensions & weight Dimensions (L x W x H): 350 x 200 x 50 mm Hodpfoyr Hqfjx Ak Dsl Weight: 7 kg External reference: 28

Condition: good (used), Year of construction: 2005, functionality: fully functional, measuring range X-axis: 505 mm, measuring range Y-axis: 405 mm, measuring range Z-axis: 405 mm, workpiece weight (max.): 180 kg, total height: 2,200 mm, total width: 1,100 mm, total length: 1,100 mm, travel distance X-axis: 505 mm, travel distance Y-axis: 405 mm, travel distance Z-axis: 405 mm, overall weight: 520 kg, input voltage: 230 V, operating temperature: 1,626 °C, pressure: 4 bar, Very nice and visually appealing 3D CNC measuring machine at a very attractive price. Three-dimensional measuring within three microns! Fully meets its specifications. Inspection and demonstration are possible. Measuring range: X-axis 505 mm Y-axis 405 mm Z-axis 405 mm Specification ISO 10360-2 MPEE = [2.9 + 3.0L/1000] µm (at a temperature of 16 ... 26 °C). Resolution 0.0001 mm CNC speed 520 mm/sec Maximum acceleration 0.23 g Can be loaded with workpieces up to 180 kg Height 220 cm Width 110 cm Length 115 cm Air-bearing axes (5 Bar supply) Operates on 230 Volt to controller (CMM itself is low-voltage) Hjdpfx Akeywd Els Djl Includes PC, monitor, mouse/keyboard Software MCOSMOS-1 v3.0 (upgrade possible)

Condition: ready for operation (used), Year of construction: 2001, This 3-axis Mitutoyo Quick Scope QS-250Z was manufactured in 2001. It features a measuring range of X=200 mm, Y=250 mm, Z=100 mm, and a maximum travel speed of 80 mm/s. The machine includes a 1/3" CCD color camera and various lighting options, enhancing visibility and precision. Ideal for detailed component analysis, consider the opportunity to buy this Mitutoyo Quick Scope QS-250Z CMM machine. Contact us for more information about this machine. Additional equipment • Software: QSPAK Version 3.1 / Operating system: Win10pro Machine Benefits Technical Machine Benefits • Dimensions of machine (lxwxh): 465 mm x 815 mm x 663 mm / weight (kg): 76 kg • Max. Workpiece weight: 10 kg Hodpfex Nr Tbjx Ak Dsl • Table glass dimensions: 269 mm x 311 mm

Condition: used, functionality: unexamined, Ferwood Code: RU0011952 – Manufacturer Code: PJ-300H – Condition: Used – Functionality: Not tested – Compatible Machine: – If interested, we offer an overhaul service, please contact us. 140KG 120X80X115 Hjdoyrplrspfx Ak Dsl

Condition: good (used), Year of construction: 2017, functionality: fully functional, Function tested; item originates from decommissioning of equipment from an automotive supplier Manufacturer: Cleco / Apex Tool Group Type: TSE 961446PT Voltage: 380 V DC Current: 2–10 A DC Operating temperature: –20 to +70 °C Humidity: 0–90 % non-condensing Hsdpfx Aksyq R T Uo Dsl You can also find the corresponding screw controller in our shop!

Condition: used, functionality: fully functional, Function tested; removed from the decommissioning of a production facility of an automotive supplier, professionally dismantled. Hodpfx Akeyq R Tzj Djl

Condition: not inspected (used), functionality: unexamined, overall weight: 40 kg, plate length: 220 mm, plate width: 180 mm, No reserve price – guaranteed sale to the highest bidder! Submitting a bid obligates you to collect the item on time, either between 11/05/2026 and 13/05/2026 or between 18/05/2026 and 21/05/2026! TECHNICAL DETAILS Magnet dimensions: 220 x 180 mm MACHINE DETAILS Dimensions & weight Dimensions (L x W x H): 270 x 270 x 340 mm Weight: 40 kg Hedpeyn Hmrefx Ak Dsl External reference: Pieper - Lot 31