Gearboxes
As a trusted solutions provider, PT Tech has experience in many different forms of drivetrains. Our gearboxes include internal wet clutches, as well as integrated wet brakes. This simplifies your system by placing multiple driveline components together in one gearbox package, providing a smaller space claim on you equipment. Whether you need diesel driven, motor driven, or hybrid, PT Tech can engineer the optimal solution for your equipment.
Gearbox-Wet Clutch Combination
PT Tech is known in our markets for our custom gearboxes with internal clutches, going up to 1200 Hp (895 kilowatt). Each gearbox is uniquely designed per our customer’s requirements and in many cases combines a wet clutch into a gearbox. Gearboxes can be designed with integrated hydraulic pump, filter, and manifold, and clutch controller, providing a complete package offering for simplification.






Gearbox-Brake Combination
Enclosed Wet Brake on Intermediate Shaft
Increased Durability
Retrofits Old Gearboxes

PTT-477A-0
Technical Specs
| Gear Ratio | 3.35:1 | |
| Parking Brake Torque | 3,710 lb·ft | 5,030 Nm |
| Service Brake Torque at 1,300 psi | 2,222 lb·ft | 3,013 Nm |
| Min. Parking Brake Release Pressure | 1,000 psi | 68.9 bar |
| Max. Parking Brake Release Pressure | 1,500 psi | 103.4 bar |
| Horsepower at 1,500 rpm | 75 hp | 55.9 kW |

PTT-477B-0
Technical Specs
| Gear Ratio | 4.65:1 | |
| Parking Brake Torque | 5,500 lb-ft | 6,847 Nm |
| Service Brake Torque at 1,300 psi | 3,025 lb·ft | 4,101 Nm |
| Min. Parking Brake Release Pressure | 1,000 psi | 68.9 bar |
| Max. Parking Brake Release Pressure | 1,500 psi | 103.4 bar |
| Horsepower at 1,500 rpm | 75 hp | 55.9 kW |

PTT-477C-0
Technical Specs
| Gear Ratio | 5.81:1 | |
| Parking Brake Torque | 6,435 lb-ft | 8,725 Nm |
| Service Brake Torque at 1,300 psi | 3,855 lb·ft | 5,226 Nm |
| Min. Parking Brake Release Pressure | 1,000 psi | 68.9 bar |
| Max. Parking Brake Release Pressure | 1,500 psi | 103.4 bar |
| Horsepower at 1,500 rpm | 75 hp | 55.9 kW |