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Hiller Lutz Spindelpresse HP71

Spindle press by Hiller & Lutz
Year of manufacture: 1980
Fully functional
In good used condition

Technical details:
The Hiller & Lutz HP71 is a classic, robust manual spindle press (also referred to as an arch press), widely used in metalworking shops, workshops, and industrial environments for straightening, bending, pressing-in, or punching operations.

Here are the standard technical specifications for this model (values may vary slightly depending on year of manufacture):

- Press force: approx. 20 to 25 tons (the "71" model number typically refers to frame size/width; actual force depends on spindle pitch and flywheel diameter)
- Spindle diameter: approx. 70 – 80 mm
- Stroke: approx. 200 – 300 mm (depending on spindle length)
- Throat depth: approx. 250 – 300 mm (distance from spindle center to frame)
- Table size: approx. 500 x 400 mm
- Maximum opening height: approx. 400 – 500 mm (with spindle fully extended)
- Flywheel diameter: approx. 1,000 – 1,200 mm

Machine features:
- Design: Heavy-duty C-frame made of cast iron for high rigidity
- Drive: Manual operation via large flywheel; energy is generated through the wheel’s inertia during operation
- Table: Usually features a central through-hole and T-slots for tool mounting
- Weight: Net weight typically ranges from 700 kg to 950 kg, ensuring stable setup (usually requires bolting to the foundation)

Machine dimensions (main body):
- Height: approx. 1,800 mm to 2,100 mm (depending on spindle position)
- Width (frame): approx. 500 – 600 mm
- Depth (base): approx. 800 – 1,000 mm

Additional note: Dimensions depend on whether only the machine body or the total required space including flywheel overhang is considered.
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