World Brand JL21 Series Variable Stroke Press Machines for Sale
Product Description
World brand JL21 variable stroke press machines
1. Eccentric Bush Stroke Adjustable Mechanism
Allows variable stroke length for versatile applications. Easy manual adjustment without disassembly. Adapts to different materials or production requirements.
Allows variable stroke length for versatile applications. Easy manual adjustment without disassembly. Adapts to different materials or production requirements.
2. Dry Type Pneumatic Clutch & Brake System
Ensures precise and rapid engagement/disengagement. Low maintenance due to dry operation (no oil/lubricant required). Ideal for high-speed applications with minimal wear.
3. PLC (Programmable Logic Controller) Control
Advanced automation for consistent operation. Easy programming and adaptability to complex processes. Real-time monitoring and fault diagnostics.
Ensures precise and rapid engagement/disengagement. Low maintenance due to dry operation (no oil/lubricant required). Ideal for high-speed applications with minimal wear.
3. PLC (Programmable Logic Controller) Control
Advanced automation for consistent operation. Easy programming and adaptability to complex processes. Real-time monitoring and fault diagnostics.
4. Hydraulic Overload Protection
Safeguards against excessive force, preventing damage. Automatically disengages under high load conditions. Extends equipment lifespan by reducing mechanical stress.
5. Circulation Center Thin Oil Lubrication System
Optimizes lubrication for moving parts, reducing friction. Improves efficiency and minimizes heat generation. Lowers maintenance costs with reliable oil circulation.
6. Two-Hand-Button Safety Control
Complies with safety standards (e.g., ISO 13851). Prevents accidental operation by requiring simultaneous activation. Enhances operator safety in hazardous environments.
7. Standard Equip with Frequency Inverter
Enables precise speed control for energy efficiency. Smooth acceleration/deceleration reduces mechanical shock. Compatible with automation systems for seamless integration.
8. Motorized Slider Adjustment System
Safeguards against excessive force, preventing damage. Automatically disengages under high load conditions. Extends equipment lifespan by reducing mechanical stress.
5. Circulation Center Thin Oil Lubrication System
Optimizes lubrication for moving parts, reducing friction. Improves efficiency and minimizes heat generation. Lowers maintenance costs with reliable oil circulation.
6. Two-Hand-Button Safety Control
Complies with safety standards (e.g., ISO 13851). Prevents accidental operation by requiring simultaneous activation. Enhances operator safety in hazardous environments.
7. Standard Equip with Frequency Inverter
Enables precise speed control for energy efficiency. Smooth acceleration/deceleration reduces mechanical shock. Compatible with automation systems for seamless integration.
8. Motorized Slider Adjustment System
Eliminates manual effort for position adjustments. Ensures repeatable accuracy in production processes. Reduces downtime during setup changes.
Power press stroke length adjusting mechanismThe mechanism is installed in front of the crankshaft, adjustable by manual. Motorized adjustment is optional. There is a hole for operator to check the right stroke length position. A knob for adjusting the stroke length is located on the press console. When adjusting, the pneumatic cylinder will drive the adjusting shaft out. Use a spanner to adjust the shaft to the wanted position. Turn back the stroke adjusting knob and the shaft will return back to original position. |
Technical parameters of variable stroke press machine
| JH21-25L | JH21-45L | JH21-63L | JH21-80L | JH21-110L | JH21-125L | JH21-160L | JH21-200L | JH21-250L | ||||
| Capacity | kN | 250 | 450 | 630 | 800 | 1100 | 1250 | 1600 | 2000 | 2500 | ||
| Nominal Stroke | mm | 3 | 4 | 4 | 5 | 6 | 6 | 6 | 6 | 8 | ||
| Slide Stroke | mm | 10-110 | 20-120 | 10-150 | 10-150 | 10-160 | 10-160 | 16-160 | 18-180 | 21-220 | ||
| SPM | Fixed | min-1 | 100 | 80 | 70 | 60 | 50 | 50 | 40 | 35 | 30 | |
| Variable | min-1 | 80-120 | 70-90 | 60-80 | 50-70 | 40-60 | 40-60 | 35-50 | 30-40 | 25-35 | ||
| Max. Die Height | mm | 250 | 270 | 300 | 320 | 350 | 350 | 350 | 450 | 500 | ||
| Die Height Adjustment | mm | 50 | 60 | 80 | 80 | 80 | 80 | 110 | 110 | 120 | ||
| Throat Depth | mm | 210 | 230 | 300 | 300 | 350 | 350 | 380 | 390 | 420 | ||
| Between Columns | mm | 450 | 550 | 620 | 640 | 710 | 760 | 810 | 920 | 960 | ||
| Bolster | LR | mm | 700 | 810 | 900 | 1000 | 1150 | 1150 | 1300 | 1400 | 1400 | |
| FB | mm | 400 | 440 | 580 | 580 | 680 | 680 | 740 | 760 | 800 | ||
| Thk | mm | 80 | 110 | 110 | 120 | 140 | 140 | 150 | 160 | 170 | ||
| Bolster Opening | mm | φ170×20 | φ180×30 | φ200×40 | φ200×40 | φ260×50 | φ260×50 | φ300×50 | φ300×50 | φ320×50 | ||
| (Up Hole Dia.×Dpth×Low Hole Dia.) | ×φ150 | ×φ160 | ×φ180 | ×φ180 | ×φ220 | ×φ220 | ×φ260 | ×φ260 | ×φ280 | |||
| Slide Area | LR | mm | 360 | 600 | 680 | 710 | 810 | 810 | 920 | 970 | 970 | |
| FB | mm | 300 | 360 | 400 | 440 | 500 | 500 | 580 | 600 | 650 | ||
| Shank Hole | Dia. | mm | φ40 | φ40 | φ50 | φ50 | φ60 | φ60 | φ65 | φ65 | φ70 | |
| Dpth | mm | 60 | 60 | 80 | 80 | 80 | 80 | 85 | 90 | 90 | ||
| Main Motor Power | kW | 4 | 5.5 | 7.5 | 7.5 | 11 | 11 | 15 | 18.5 | 22 | ||
| Dimensions | FB | mm | 1500 | 1610 | 1680 | 1750 | 1860 | 1860 | 2250 | 2500 | 2730 | |
| LR | mm | 950 | 1170 | 1260 | 1310 | 1400 | 1450 | 1600 | 1700 | 1750 | ||
| H | mm | 2650 | 2850 | 3050 | 3150 | 3350 | 3350 | 3800 | 4200 | 4300 | ||
| Net Weight | kg | 3100 | 4350 | 6500 | 8500 | 10000 | 10700 | 14500 | 17950 | 25400 | ||