China JSL CNC Four Column Type Hydraulic Press - Reliable Suppliers and Factory for Precision Metal Processing
Product Features
Forged & Ground Cylinder
Forged and precisely ground oil cylinder, ensuring reliable performance even under high pressure conditions.
High Strength Columns
Four columns are constructed from high strength alloy steel, featuring a chrome-coated surface for superior anti-wear performance.
Adjustable Efficiency
Fast non-load speed paired with fully adjustable feeding speed and pressure, maximizing overall production efficiency.
Integrated Work Table
Oil cylinders designed for mold mounting and stripping are conveniently integrated directly at the movable work table.
Working Principle
After the motor starts, it drives the connecting rod to move through the belt pulley, reducer, and turbine and worm transmission mechanism. The four integral power forming cylinders exert force, outputting strong traction, and applying pressure to the raw materials in the mold, causing raw materials to stretch and form in the mold.
Application Fields
It is mainly used in the fields of metal sheet stretching and industrial sheet metal forming, such as the stretching process of car parts like filter housings, exhaust pipes, and radiator covers. Additionally, it can be used in the production of elevator accessories, motor end caps, TV back plates, stainless steel tableware, fan casings, pots, and pans.
Features and Advantages
Strong Stretching Force
Provides greater pressure, allowing materials such as metal sheets to achieve the desired shape and size during the stretching process. Suitable for processing various materials with different thicknesses and strengths.
Precise Control Capability
Equipped with advanced control systems to precisely manage parameters such as pressure, speed, and stroke, ensuring stability, consistency, and improved processing accuracy.
Multi-Functionality
By replacing different molds, it achieves stretching and forming of various products. It is also suitable for correction, pressing, packaging, pelletizing, and pressing plates.
Solid Structure
The combination of a four-column structure and frame structure guarantees high strength and rigidity, maintaining stable performance and reducing processing errors over long-term operations.
Key Selection Points
• Ton Selection
Determine the appropriate tonnage according to the size, thickness, and stretching force requirements of the workpiece to ensure sufficient pressure is provided.
• Table Size
Choose a workbench size that comfortably accommodates the workpiece during processing and leaves sufficient space to install the mold.
• Stroke Requirements
Consider the maximum stretching stroke of the workpiece. The stroke of the hydraulic press must exceed this value to ensure complete processing.
• Control Method
Select the control method—manual, semi-automatic, or fully automatic—that best aligns with your production process and automation needs.
Technique Parameter
| Model | Units | JSL-40 | JSL-60 | JSL-120 | JSL-220 | JSL-300 | JSL-350 | JSL-500 | ||
| Rated capacity of main cylinder | ton | 28 | 40 | 85 | 160 | 225 | 260 | 350 | ||
| Bottom cylinder nominal pressure | ton | 12 | 20 | 35 | 60 | 75 | 90 | 150 | ||
| System pressure | Mpa | 20 | 20 | 23 | 24 | 25 | 24 | 25 | ||
| Main cyinder Max. Stroke | mm | 300 | 350 | 450 | 560 | 560 | 560 | 800 | ||
| Bottom cyinder Max. Stroke | mm | 140 | 150 | 200 | 260 | 260 | 260 | 350 | ||
| Main cyinder approaching speed | mm/s | 200 | 200 | 220 | 210 | 210 | 200 | 190 | ||
| Main cyinder working speed | mm/s | 8~20 | 8~20 | 9~20 | 9~20 | 9~19 | 10~17 | 10~18 | ||
| Main cyinder return speed | mm/s | 200 | 200 | 220 | 200 | 200 | 190 | 180 | ||
| Bolster close height | mm | 200 | 250 | 280 | 340 | 340 | 340 | 1000 | ||
| Bolster of M. W. T.* Available | L-R (Between cylinder) | mm | 350 | 400 | 610 | 710 | 800 | 900 | 1250 | |
| F-B(Rim) | mm | 450 | 500 | 700 | 870 | 900 | 1000 | 1200 | ||
| Knock-out pressure | ton | 2 | 2 | 3 | 5 | 5 | 5 | 10 | ||
| Knock-out cyinder silde | mm | 120 | 130 | 180 | 200 | 200 | 220 | 300 | ||
| Over all dimension | L-R | mm | 1500 | 1600 | 1900 | 1960 | 2020 | 2200 | 3088 | |
| F-B | mm | 1000 | 1100 | 1350 | 1650 | 1720 | 1850 | 2500 | ||
| Height | mm | 2800 | 3000 | 2900 | 3550 | 3600 | 3800 | 5900 | ||
| Motor power | kw | 5.5 | 7.5 | 11 | 22 | 22 | 37 | 37 | ||
| Weight ( Approx) | kg | 2500 | 3000 | 5400 | 7500 | 9500 | 10500 | 23000 | ||



