Dual-Column Tensile Testing Machine for Terminal Pull-Off and Material Testing to 5 kN WM-812

Name: Dual-Column Tensile Testing Machine for Terminal Pull-Off and Material Testing to 5 kN WM-812
Brand: Wiromac
SKU: WM-812

CE Certified HS Code 9031.80 5 kN (500 kg) max force

The WM-812 is a dual-column, floor-standing tensile tester rated 500 kg (5,000 N) — the force class used for terminal pull-off tests on wire harnesses and for tension, compression, flexure, shear and peel tests on materials. A class-0.5 load cell holds force indication within ±0.5% at 1/100,000 resolution, and the AC-servo drive sweeps 0.05 to 500 mm/min steplessly across an 800 mm stroke and 400 mm test width. Results plot as force-elongation curves in the PC software, with automatic strength and elongation calculations to GB, JIS, ASTM and DIN methods.

Specifications

Function	Tension, compression, flexure, shear and peel testing
Force capacity	500 kg / 5,000 N
Force accuracy	Class 0.5 — indication within ±0.5%
Resolution	1/100,000
Signal amplification	24-bit AD, non-segmented
Force units	N, kN
Test speed (servo)	0.05 – 500 mm/min stepless
Test speed (non-servo option)	10 – 100, 50 – 300 or 100 – 500 mm/min stepless
Speed control accuracy	±0.2% (class 0.5) / ±1% (class 1)
Effective test width	400 mm standard (customizable)
Test stroke incl. fixture	800 mm standard (customizable)
Overload protection	Auto shutdown at 10% above set test force
Travel protection	Programmable upper and lower stroke limits
Drive	AC servo motor with servo drive controller
Power consumption	0.75 kVA
Power supply	Single-phase 220 VAC, 50/60 Hz
Measurement system	PC software plus built-in controller with report printing
Dimensions (host)	80 × 70 × 180 cm (W × D × H)
Weight	Host 300 kg, console 100 kg
HS Code	9031.80 (common reference — final classification confirmed by your customs broker)
Certification	CE (certificate provided with shipment)

Key features

Class-0.5 accuracy with 1/100,000 resolution separates marginal crimps from good ones instead of only catching gross failures
PC software overlays multiple force-elongation curves, so terminal batches, wire lots and suppliers can be compared plot against plot
Automatic calculation of tensile strength, yield, elongation and elastic modulus to GB, JIS, ASTM and DIN standards — no spreadsheet work after each pull
Overload, overcurrent, overvoltage, undervoltage, overspeed and travel-limit protections guard both the specimen fixtures and the frame

What it processes

Terminal crimp pull-off and wire breaking-force tests in harness plants
Tension, compression and peel testing of plastics, films, adhesives, tapes and packaging materials
Incoming-material QC labs running standardized GB, JIS, ASTM or DIN test methods

Suited for: terminal pull-off and wire breaking-force tests up to 5,000 N, and standard tension, compression, flexure, shear and peel tests on plastics, films, adhesives and packaging materials — the everyday QC work of a harness plant or materials lab. Not suited for: forces above 5 kN — for those, pick the WM-811 one-ton tensile tester, which pulls up to 10,000 N, or the WM-830 electric vertical tensile testing machine for the 20,000 and 30,000 N ratings — or electrical checks; continuity, color and insertion testing belongs to the vision and electrical testers in our wire harness testing category.

Not sure your samples fit? Send 2–3 meters of wire or a bag of crimped leads and we run your exact pull tests on camera before you commit. Terminal pull-force limits matter most on safety-critical builds like an EV wire harness line.

Engineering knowledge

Choose and troubleshoot this process

Wire Harness Electrical Test Failures: Causes and Corrective ActionsDiagnose open circuits, shorts, high resistance, insulation failures, intermittent contacts, wrong cavity insertion and unstable harness test fixtures.
How to Choose Wire Harness Testing EquipmentChoose harness testing equipment by circuit count, continuity limits, insulation and withstand requirements, connector fixtures, traceability and production workflow.

Neither machine quite fits? New configurations reach our application engineers before they reach the catalog. Tell us your material and process; we will confirm what we manufacture and support, then recommend the right configuration. Get a tailored recommendation →

WM-812 — common questions

What force range does the WM-812 cover?

The standard build is 500 kg (5,000 N) with a class-0.5 high-precision sensor, and several sensors can be installed side by side and selected per test, so one frame covers small terminal pull-offs and larger material specimens. Test width is 400 mm and stroke 800 mm, both customizable at order time.

Does it come with the software and computer?

Yes — the measurement system runs on PC software with live force-elongation plotting and report printing, and the machine also has its own English-language touchscreen controller for direct jog, test and zero operations. The PC can be supplied with the machine or you can use your own.

What is it not suitable for?

Anything beyond 5,000 N of test force — thick battery-cable lugs and structural samples need a higher-capacity frame, which we can quote separately. It is also a mechanical tester only; for color-sequence and insertion checks on finished harnesses, see the other wire harness testing equipment in this category.