Technical Performance:
1. A ZG series free roller is essential equipment for all wheel drive vehicle to be used in brake tester, chassis dynamometer and speedometer.
Applicable for all axle load automobile.
2. Bending steel plates and welded into rack with good rigidity, and cool appearance.
3. It is unnecessary to use anchor bolts, but need to tighten the square head bolts to foundation sides. It is convenience to install and adjust.
4. Adopts pneumatic locking, easy to drive out.
Technical Parameter:
| Type | ZG-03 Free Roller | ZG-10 Free Roller | ZG-13 Free Roller | ZG-15 Free Roller |
| Maximum bearing mass | 3t | 10t | 13t | 15t |
| Maximum wheel load | 1.5t | 5t | 6.5t | 7.5t |
| Diameter x Length Of Roller | Φ190×800mm | Φ190×1000mm | Φ190x1100mm | Φ190×1200mm |
| Inner width x Outer width Of Roller | 700x2300mm | 700x2700mm | 700x2900mm | 700x3100mm |
| Rollers Center Distance | 220+220mm | 220+220mm | 220+220mm | 220+220mm |
| Host size（LxWxH） | (2570×800×370)mm | (2930×800×370)mm | (3130×800×370)mm | (3360×805×375)mm |
| Gas source | The air pressure is 0.8Mpa-1.00 Mpa, in order to avoid damage to the solenoid valve, the compressed air must be dewatered and filtered before entering the equipment (the air filter is provided by the user); the air pressure of the lifting airbag shall not be less than 0.7 Mpa when leaving the vehicle; The body air flow rate is not less than 3m³/min. | |||
| Operating voltage of Electromagnetic valve | AC 220V | AC 220V | AC 220V | AC 220V |