C Frame Eccentric Variable Stroke Press Machine
Product Description
Main features of variable stroke press machines
• 7 or 9 Adjustable Stroke Shifts — Quickly switch between different stroke lengths to match various tooling and production needs, reducing changeover time on your workshop floor.
• Standard Safety Light Barriers & Frequency Inverter — The press comes pre-fitted with safety light barriers for operator protection and a built-in frequency inverter to deliver smooth, variable-speed motor drive performance.
• Heavy-Duty C-Frame Steel Welded Construction — Built with a rigid C-frame steel welded body to ensure stable stamping accuracy, long machine life, and consistent performance under daily industrial workloads.
• CE-Approved Industrial Press — Fully CE certified for compliance with European safety regulations, making it suitable for metal stamping, forming, and general fabrication applications.
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 | ||