DETSCH 325NC High-Performance Programmable Hydraulic Pipe Bending Machine Outstanding Performance Features Introduction

1. The machine head and the three-way bed are welded from high-strength Q345 or 16Mn steel plates, with a design of staggered reinforcing ribs and subjected to annealing to eliminate internal stress and shot blasting treatment. The bed has sufficient strength and rigidity, no vibration occurs during core bending, preventing permanent deformation, and also provides a high-precision foundation for three 90° distributed heavy-duty roller linear tracks. The entire machine is processed by a gantry machining center, ensuring high precision for the bed and machine head.

2. The bending drive structure generates torque through double oil cylinder pulling bending chain wheels. The bending oil cylinder with a rod-to-diameter ratio of 2:1 has great bending resistance. The threaded connection of the rod diameter inside the chain ensures smooth and reliable transmission without pulsation (utility model patent). The return reset cylinder also has the advantages of a large rod diameter and provides rapid reset function. The return reset speed is three times the bending speed, greatly improving work efficiency.

3. The main die reset and the opening and closing of the mold are two functional modules installed inside the transmission spindle, forming a sophisticated and durable three-layer shaft system structure. The transmission spindle system is equipped with two German FAG or NSK self-aligning roller bearings, which are directly heat-mounted from the upper part of the machine head with extremely high assembly accuracy. There is almost no longitudinal or lateral jump during bending, ensuring good precision retention, and facilitating disassembly and maintenance.

4. The main spindle and bending chain wheels are integrally forged with 42CrMo alloy steel, processed integrally, with integral hobbing, without key connection, and subjected to quenching and tempering and local high-frequency quenching and grinding. The actual load of the transmission chain is 36% of the rated load, with a design service life of 30 years.

5. The clamping and pressing actions adopt an extremely stable and reliable three-linkage amplification self-locking structure. The flat-pushing clamping and pressing avoid the displacement of the pipe material during clamping, as seen in the sinking-type clamping structure! The clamping assembly and pressing assembly (including auxiliary pushing or top forging module) have aluminum bronze (QATG-A, embedded graphite) inlaid on their active surfaces (straight sliding surface or curved surface) and are automatically lubricated at regular intervals.