Closed-Type Double-Point eccentric gear Power Press Manufacturers

The Bolun Closed-Type Double-Point Eccentric Gear Power Press is engineered for heavy-duty, high-precision stamping applications that demand massive torque and exceptional structural stability. By utilizing an eccentric gear drive instead of a traditional crankshaft, this machine is the definitive choice for deep drawing, heavy blanking, and large-scale component manufacturing in the automotive and appliance industries.

The Eccentric Gear Advantage: High Torque & Long Stroke

The defining feature of this series is the eccentric gear transmission system. Unlike standard crankshafts, eccentric gears provide a significantly larger contact area, allowing the machine to deliver higher torque even at positions far above the Bottom Dead Center (BDC). This specific kinematic profile is ideal for deep drawing processes, as it ensures a smooth and consistent force throughout the entire working stroke. Furthermore, the eccentric gear design is inherently more durable under massive loads, reducing the risk of shaft deformation and extending the maintenance intervals of the machine.

Uncompromising H-Frame Rigidity

Constructed with a symmetrical, closed-type H-frame, this press virtually eliminates the "angular deflection" common in open-back designs. The reinforced steel-plate welded frame undergoes rigorous heat treatment for maximum stress relief, ensuring that the punch and die remain in perfect vertical alignment. This ultra-rigid environment is critical for maintaining micron-level part consistency and protecting expensive, high-complexity tooling when processing high-strength alloys or materials exceeding 3.2mm.

Double-Point Stability for Wide Progressive Dies

The double-point drive mechanism ensures that force is distributed evenly across the slide. This provides exceptional resistance to eccentric (off-center) loading, allowing the slide to remain perfectly parallel to the bolster even when using wide or unbalanced progressive dies. This stability prevents uneven material thinning and ensures superior edge quality across large workpieces.

Engineering Excellence and Smart Automation

True to Bolun's premium standards, the gear sets are crafted from high-strength forged alloys, supported by CuSn12 tin bronze bushings. The press is equipped with a high-performance pneumatic friction clutch, hydraulic overload protection, and a PLC-based smart control system. Fully compatible with NC servo feeders and robotic transfer arms, the Bolun Eccentric Gear Press is the cornerstone for any high-volume, high-precision smart manufacturing line.