J58K
CrMoV alloy screw press with gear drive and frequency control, suited for calibration, sizing and precision forging of ferrous and non-ferrous metals (aluminum, copper, brass).
Overview
The J58K Series Electric Screw Press is used for all kinds of precision forging, sizing, precision pressing, calibration and leveling. The hitting energy is adjusted accurately, with a short stroke and stable energy from blow to blow.
Energy settings reduce the mechanical and thermal stress on the dies and extend their lifespan. Its low slider speed gives it unique advantages when forging non-ferrous metals such as aluminium alloy and copper.
The press uses advanced frequency conversion control technology, has a simple and reliable structure and can provide greater working energy than classic friction presses.
Key data
Full technical parameters are confirmed together with our engineers, based on your part and production volume.
Features
The slide moves vertically through the motor-driven pinion, gearwheel and screw. The gearwheel acts as a flywheel with sufficient inertia. On activation the motor accelerates the slide from standstill to the preset speed, then stops accelerating once the required blow energy is reached; the kinetic energy of the gearwheel performs the forming work.
The combined frame eliminates notch stress concentration between the working table and the columns, and between the crossbeam and the columns. Large presses can be dismantled into transportable pieces. Under identical tensile stress its extensibility is only 20% of a unibody frame.
The screw is forged from CrMoV high alloy steel, with a thread type offering good fatigue resistance, no self-lock, stable installation and short length, which increases the rigidity of the press.
The nut is made of bronze and installed inside the slide, providing good abrasive resistance and safe emergency sliding performance.
The guides are arranged at 45 degrees to the slide block surface, so the clearance stays constant and is unaffected by thermal expansion. Bronze and steel guiding sets run on nitrogen-treated guide rails, and the guide plates adjust from each direction for minimal clearance.
The flywheel adopts friction overload protection — safe and reliable — which protects the drive train in the event of a blow beyond the rated capacity.
The brake engages directly via the gear mechanics, enabling braking at any position. Spring force closes the brake while pneumatic control opens it.
A squirrel-cage three-phase forward and reverse asynchronous motor drives the precision screw — a low-maintenance, high-reliability solution. The special motor runs at high RPM with less torque, and each press tonnage gets a correspondingly rated motor.
A monitored lubricating oil circulation system constantly lubricates the spiral thrust bearing and sustains guide rail lubrication through numerous circulation cycles.
The slide block is a high-class steel casting given a full aging treatment to relieve internal stress.
In use
Gallery
Video
Technical specifications
Swipe the table sideways to see all models →
| Parameter | Unit | J58K-160 | J58K-250 | J58K-315 | J58K-400 | J58K-630 | J58K-1000 | J58K-1600 | J58K-2500 | J58K-4000 | J58K-6300 | J58K-8000 | J58K-10000 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nominal force | KN | 1600 | 2500 | 3150 | 4000 | 6300 | 10000 | 16000 | 25000 | 40000 | 63000 | 80000 | 100000 |
| Max. working force | KN | 2500 | 4000 | 5000 | 6300 | 10000 | 16000 | 25000 | 40000 | 63000 | 100000 | 125000 | 160000 |
| Max. forging energy | KJ | 10 | 15 | 20 | 40 | 80 | 160 | 280 | 500 | 1000 | 1600 | 2300 | 3600 |
| Slide stroke | mm | 300 | 320 | 380 | 400 | 450 | 500 | 600 | 630 | 750 | 850 | 850 | 1000 |
| Theoretical strokes | min⁻¹ | 30 | 28 | 26 | 20 | 19 | 18 | 15 | 14 | 10 | 10 | 9 | 8 |
| Min. enclosed height | mm | 500 | 500 | 550 | 570 | 720 | 750 | 960 | 1050 | 1460 | 1720 | 1800 | 2160 |
| Thickness of sow block | mm | 120 | 120 | 120 | 120 | 160 | 180 | 220 | 250 | 300 | 320 | 320 | 360 |
| Size of worktable (width × depth) | mm | 600×560 | 600×560 | 700×640 | 750×730 | 820×900 | 920×1050 | 1000×1280 | 1200×1400 | 1600×1900 | 2100×1750 | 2200×2000 | 2800×2000 |
* Values are indicative and can be adapted to your specific application requirements.
Advantages
Over 90% reduction in energy consumption compared to classic steam or compressed-air hammers — a direct impact on costs and emissions.
01Low operating and maintenance costs, maximum production agility and minimal setup times.
02The system is equipped with motion-locking devices, ensuring operator protection under any working conditions.
03Sturdy, resilient structure designed for long-term durability and consistent performance.
04See also
Our technical team helps you choose the right model for your application. We respond quickly on WhatsApp or email.
