油圧プレス

Hidrogarne 250 T 4-Säulen Tiefziehpresse MV-250E/NC

HYDRAULIC FOUR-COLUMN PRESS FOR DEEP DRAWING APPLICATIONS
TECHNICAL DATA

Press force / Main cylinder 250 t
Blankholder force 50 t
Motor power 11 kW
Ram stroke 500 mm
Approach speed 80 mm/s
Working speed 7 mm/s
Return speed 105 mm/s
Column diameter 150 mm
Maximum pressure 260 bar
Usable table area 2,500 x 1,150 mm
Column clearance 2,500 x 700 mm
Maximum open height 1,000 mm
Blankholder (cushion) size 950 x 750 mm
Working height 1,100 mm
Overall height 3,650 mm
Weight 15,000 kg

The hydraulic four-column press MV-250E/NC belongs to the M/NC series and is specially designed for high precision and capacity, particularly in deep drawing operations.
Outfitted with upper and lower tables made from C45E steel, featuring DIN-650 T-slots to ensure minimal friction during vertical movement of the upper table. This is facilitated by maintenance-free bi-metal bushings and perfect parallelism by means of four chrome-plated and precision-ground cylindrical columns.
The press features an optimized hydraulic system operating at pressures below 290 bar, ensuring long service life and reliable performance.
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It complies with all essential safety and health requirements in accordance with CE regulations.

STRUCTURE AND TABLES
• Consists of three fully welded blocks, manufactured exclusively from S355JR steel.
• Stabilized and machined after welding to ensure perfect parallelism and precision.
• Designed and calculated using finite element analysis software.
• The lower table is equipped with a 50-ton hydraulic cushion, usable area 950 x 750 mm, and three front supports for tooling outside the press.
• Integrated SIEMENS KTP-400 NC for controlling ram stroke, speed changes, and cushion control.
• Includes a SIEMENS S7 PLC, permitting storage and programming of up to 99 settings.

CYLINDER AND HYDRAULIC UNIT
• Single-acting cylinder with honed sleeve, chrome-plated piston, and wear-resistant guides.
• Complete hydraulic unit installed on the top of the press.
• Hydraulic unit comprises a low-noise Denison hydraulic pump and an air-oil cooler.
• Includes:
- Decompression system
- Solenoid operated pressure valves
- Pre-fill valves
- Communication valve
- Check valve
- Pressure relief valve
- Safety catch valve

ELECTRICAL INSTALLATION AND SAFETY
• Features a SIEMENS SIMATIC S7 1200 safety PLC and a 4-inch KTP-400 touchscreen on the control panel. Enables programming of semi-automatic and automatic modes, power, stroke, and dwell time. Offers storage for up to 99 recipes; each recipe is fully programmable for the above parameters.
• The electrical control panel features a selector switch for mode selection: manual “setup” or automatic “production” cycle.
• Machine operation via electric low-voltage foot pedals.
• Safety features include category IV light curtains in the front working area, two fixed side guards, and a rear safety guard with a magnetic interlock detector.

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