Head to head
Crypton Class IV Roller Brake Tester vs Sealey WB10
The Crypton Class IV Roller Brake Tester is a mot-approved roller brake tester for cars and light vans. The Sealey WB10 is a semi-automatic wheel balancer.
Last reviewed 13 September 2026
Specifications side by side
| Crypton Class IV Roller Brake Tester | Sealey WB10 | |
|---|---|---|
| Supply | 400V 3-phase, 25A fuse | 230V single phase |
| Max axle weight | 4000 kg | - |
| Max brake force per wheel | 600 kgf | - |
| Test speed | 5 km/h | - |
| Roller diameter | 182 mm | - |
| Roller length | 700 mm | - |
| Axle width range | 800-2200 mm | - |
| Max control box distance | 12 m from rollers | - |
| Warranty | 3 years | - |
| Max wheel weight | - | 70 kg |
| Max rim diameter | - | 28in |
| Max rim width | - | 20in (510 mm) |
| Motor power | - | 90 W |
| Balance accuracy | - | +/- 1g |
| Rotating speed | - | 140 rpm |
| Dimensions | - | 1100 x 1000 x 1250 mm |
| Weight | - | 128 kg |
Sources: Crypton Class IV Roller Brake Tester, Sealey WB10. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Class IV Roller Brake Tester if...
A Class IV MOT roller brake tester for cars and light vans up to 4 tonnes, testing at 5 km/h with a 700mm roller length. It runs from a 3-phase supply and carries a 3 year warranty. Suits an MOT-approved garage testing standard cars and vans.
Full Class IV Roller Brake Tester specifications →Buy or hire the WB10 if...
A semi-automatic wheel balancer with auto data input for offset and wheel diameter, taking rims up to 28 inches. Balancing takes about 7 seconds per wheel at 140rpm. Suits a garage wanting a simple balancer alongside a tyre changer rather than a fully automatic setup.
Full WB10 specifications →Common questions
What is the difference between the Crypton Class IV Roller Brake Tester and the Sealey WB10?
The Crypton Class IV Roller Brake Tester is a mOT-approved roller brake tester for cars and light vans; the Sealey WB10 is a semi-automatic wheel balancer.
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