AG Measurematics
ISO 7176 • IS 18651 • Complete Test Lab

Wheelchair Testing Machines

Complete test lab for qualifying wheelchairs per ISO 7176 and IS 18651 — covering static strength, fatigue endurance, curb drop, static stability, and braking effectiveness in a single integrated suite.

Wheelchair Testing Machine — ISO 7176 / IS 18651

Applicable Standards

  • ISO 7176-1 — Static stability
  • ISO 7176-3 — Braking effectiveness
  • ISO 7176-8 — Static, impact and fatigue strengths (Dual Drum Machine)
  • ISO 7176-11 — Test dummies
  • IS 18651 — Indian adoption of ISO 7176 (BIS 2024)
  • IS 7454 — BIS specification for folding wheelchairs

WTM Series

Overview

India's BIS adopted IS 18651 in 2024 — the performance-based wheelchair test standard aligned with ISO 7176. Unlike the earlier IS 7454 (design-spec only), IS 18651 mandates physical testing of every wheelchair before supply to government procurement schemes such as ADIP.

The WTM Series provides a complete, standards-compliant test lab in a single integrated package — covering all five core test disciplines required for IS 18651 / ISO 7176 type approval, from a single supplier with installation, calibration, and NABL documentation support.

  • Static strength: up to 3,000 N on all structural members
  • Double-drum fatigue: 200,000 cycles at 1 m/s
  • Curb drop: 6,666 cycles from 50 mm height
  • Static stability: 0–30° tilt platform, ±0.5°
  • Braking: 0°, 3°, 6°, 10° multi-slope ramp
  • IS 18651 / ISO 7176 compliant reports
  • NABL accreditation documentation support

Wheelchair Testing Systems

Wheelchair Testing Systems

Five dedicated test machines covering every test discipline required for ISO 7176 / IS 18651 type approval.

01

Static Strength Tester

ISO 7176-8 / IS 18651-8

Applies controlled static and impact loads to armrests, footrests, push handles, and caster forks. Measures force and deformation to verify structural integrity against the load limits in ISO 7176-8.

  • Load range: 15 N – 3,000 N (accuracy ±3%)
  • Static load hold time: 5–10 s per ISO 7176-8 Clause 8
  • Back support impact pendulum: 25 kg ±0.5 kg
  • Handrim/castor impact pendulum: 10 kg ±0.20 kg
  • Electric actuator with load cell feedback
02

Double-Drum Fatigue Tester

ISO 7176-8 (Dual Drum Machine) / IS 18651-8

Simulates 200,000 cycles of rough terrain travel on two steel drums (250 mm dia.) fitted with raised bumps. The wheelchair is loaded with a standardised test dummy at rated occupant mass and driven at 1 m/s.

  • Drum diameter: 250 mm ± 25 mm (ISO-compliant)
  • Slat height: 6 / 9 / 12 mm (ISO 7176-8, wheel-size dependent, ±8%)
  • Surface speed: 1.0 m/s ± 0.1 m/s
  • Required cycles: 200,000 revolutions of reference drum
  • Load: up to 100 kg (ISO 7176-11 test dummy)
03

Curb Drop Tester

ISO 7176-8 / IS 18651-8

Drops the loaded wheelchair repeatedly from a 50 mm height to simulate kerb descent. PLC-controlled pneumatic release ensures consistent drop height and records cumulative cycle count automatically.

  • Drop height: 50 mm ± 5 mm (adjustable 0–100 mm)
  • Max load capacity: 200 kg
  • Required cycles: 6,666 minimum
  • Brakes disengaged; wheels free to rotate during test
  • Release: pneumatic + electromagnetic
04

Static Stability Tilt Platform

ISO 7176-1 / IS 18651-1

Motorised tilt platform measures the angle at which the wheelchair tips forward, rearward, and laterally — both with brakes applied and wheels free. Real-time digital angle display with ±0.5° accuracy.

  • Tilt range: 0–30° (motorised, variable speed)
  • Angle accuracy: ±0.5°
  • Test directions: forward, rearward, left, right
  • Brake test: applied and wheels-free conditions
  • Platform: flat, hard surface per ISO 7176-1
05

Braking Effectiveness Test Ramp

ISO 7176-3 / IS 18651-3

Multi-slope adjustable ramp for measuring braking distance and slope-holding performance. Tests are conducted at 0°, 3°, 6°, and 10° slopes. Braking distance is measured to 100 mm resolution per ISO 7176-3.

  • Ramp slopes: 0°, 3°, 6°, 10° (adjustable)
  • Inclinometer accuracy: ±0.2° (ISO 7176-3)
  • Surface: hard, flat per standard
  • Measurement resolution: 100 mm
  • Handles both manual and power wheelchairs

Technical Data

Test Parameters

ParameterValue
Static load (strength test)Up to 3,000 N
Fatigue drum cycles200,000 revolutions of reference drum (ISO 7176-8)
Curb drop cycles6,666 minimum (ISO 7176-8 Cl. 10.4)
Parking brake fatigue cycles60,000 minimum at ≤0.5 Hz (ISO 7176-8 Cl. 10.5)
Drop height50 mm ± 5 mm
Drum surface speed1.0 m/s ± 0.1 m/s
Drum diameter250 mm ± 25 mm
Stability angle range0–30°
Stability angle accuracy± 0.5°
Max test load200 kg
Braking slope range0°, 3°, 6°, 10°
Cycle counterUp to 999,999 (PLC)
Power supplySingle-phase, 230 V, 50 Hz

Per ISO 7176 / IS 18651. Custom configurations available on request.

What's Included

Deliverables

Static strength tester with load cell and electric actuator
Double-drum fatigue tester with ISO-spec steel drums and bumps
Curb drop tester — PLC-controlled pneumatic release
Static stability tilt platform — motorised, digital angle display
Braking effectiveness test ramp — multi-slope adjustable
ISO 7176-11 test dummy set (standardised weight, 25 kg impact ball)
Data acquisition and cycle counting software
Auto-generated test reports per ISO 7176 / IS 18651
Installation, commissioning, and calibration
Operator training and test method documentation

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Services

Setting Up a Wheelchair Test Lab?

Tell us your required scope — IS 18651 type approval, NABL accreditation, or full ISO 7176 suite — and we'll configure the right machines for your facility.

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