Twin-screw Gearbox

Category Spare Parts

The gearbox is the core transmission component of plastic pelletizing equipment, responsible for efficiently transmitting motor power to the screws and ensuring stable equipment operation. Granuwel provides high-torque, high-precision, and long-life gearbox spare parts suitable for twin screw extruders, pelletizers, strands pelletizing systems, and other equipment. They can be matched with plastic processing machinery of different brands and models.

Description

Granuwel offers a full range of high-performance gearbox spare parts, covering two main series: B-Type (self-produced) and D-Type. Both adopt a parallel tri-shaft integrated design with a speed reduction ratio of 2.5:1, specifically developed for the high-speed and high-load operating conditions of plastic pelletizing equipment. Our gearboxes utilize 40CrNiMoAlA high-strength alloy steel, feature ISO Grade 6 machining precision, and are fully equipped with SKF bearings, ensuring a stable and reliable transmission system.

Product Comparison

Parameter	B-Type Gearbox	D-Type Gearbox	Common features
Production Mode	Self-produced	Self-produced	–
Speed Reduction Ratio	2.5:1	2.5:1	Standard Ratio2.5:1
Structural Design	Parallel Tri-Shaft	Parallel Tri-Shaft	Integrated Design
Gear Material	40CrNiMoAlA	40CrNiMoAlA	High-Strength Alloy Steel
Machining Precision	ISO Grade 6	ISO Grade 6	Precision Gear Grinding Process
Bearing Configuration	Full SKF Series	Full SKF Series	Premium Bearing Assurance
Max. Torque	10,000-50,000N·m	10,000-50,000N·m	Customizable
Specific Torque T/A3	8	13
Delivery Lead Time	15-30days	15-30days	–
Warranty Period	24months	24months	–