Roll Thread Stud Machine

Thread rolling machines are designed for the production of threaded rods, standard DIN 525, DIN 835, DIN 938, DIN 939, DIN 975, DIN 976-1, DIN 976 and others; thread rolling on hydraulic-type rods with transverse feed and pass feed as standard.

The hydraulic feed pressure is adjustable from 0.5 tons to meet all production needs. On some models, the lateral feed cycle times are controlled by a timer and a feed delay switch. This facilitates rolling thin and coarse shapes with simple adjustment. On request, options for a semi-automatic and fully automatic loading system, a pedal control system and electric reverse locks are available. The equipment is particularly well suited for the manufacture of long screw threads and fine threads, spline, worm and gear for components of machines and equipment, tools, motorcycles, construction equipment, automobile parts, etc.

Compared to other thread manufacturing methods, thread rolling machines offer the following advantages:

Standard equipment is represented by equipment for rolling a hydraulic type thread with transverse feed and feed to the passage.

1/8 hp coolant pump

3 hp hydraulic pump

Tool box

Operation manual

Supply voltage: 3ph 50Hz 380V

Speed: 24, 38, 52, 78 rpm

Thread rolling standard Ø150 х Ø54 х 70 length

70 mm roller knife

Semi-automatic or automatic feeder

The sliding base plate is thickened, with the thickness increased by about 40% compared to the original, making it more stable and durable. The top part is made of ductile iron casting. The sliding track uses tapered strips and a dovetail structure, making the slide rail more stable and durable during operation.

This tool uses a worm gear to adjust the stroke, which can achieve fine adjustment of the thread depth during workpiece processing. The handwheel only adjusts 0.2mm with one full rotation, while the original one adjusted 3-6mm with one rotation, a difference of 15-30 times in adjustment accuracy. The adjustment of the mold distance is very rough, and if the thread depth is slightly different, it is difficult to adjust. Either it is adjusted too deep and the material bounces up, or it is adjusted too shallow and it is difficult to tighten the nut.

The original 39mm diameter return rod with spring was replaced with an 80mm diameter double-acting hydraulic cylinder piston rod. The original rod was prone to breakage when performing heavy lifting or prolonged tasks, posing a safety hazard if someone was standing near the machine and could be injured. The improved model eliminates this issue of return rod breakage.

The hydraulic structure is bidirectional hydraulic, with high pressure for forward movement and low pressure for reverse movement during operation. Both forward and reverse movements are hydraulically controlled, achieving separation of high and low pressure, protecting the equipment, and reducing oil temperature. The hydraulic system is the same as that of the Z28-200, Z28-260, and Z28-280 large thread rolling machines, making it more stable and durable.