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Rausch RS 4 / 1000

Manufacturer: Rausch (Haan/Rhld)
Model: RS 4/1000 Machine No.: 5027
Year of manufacture: 2001/2023 Weight: 580kg
Overhauled: 03/2023 by Wiemers AG

General Information / Technical Data:
Unused, overhauled mechanical vertical broaching machine Rausch RS 4 with current "CE" certification
Tensile force: 40 kN (4,000kg)
Broaching speeds: 3m/min and 6m/min
Return speed: 6m/min
Maximum stroke: 1,000mm
Maximum tool length: 1,200mm
Table size / Work area: 540 x 340mm / 450 x 250mm
Table opening: Ø 90mm for standard broaching mandrels
Workpiece diameter: unlimited
Dimensions (h x w x d): 2,350mm x 900mm x 1,000mm (with splash guard enclosure)
Motor: 4.4 kW / 5.5 kW Power supply: 400 Volt / 50 Hz
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Accessories / Special Features:
- Drive unit with 2 speeds
- Safety door with interlock and chip chute
- Chip chute with tool storage
- Electric monitoring of the clamping jaws (tool removal control to prevent accidental return of the drawbridge)
- Integrated coolant system with solenoid valve (operated by swiveling system)
- Patented coolant/lubricant swiveling system
- Externally adjustable tool length setting system (cross-machine reproducible)
- 4 centralized lubrication points for the trapezoidal spindle drive
- Enclosed centering plate for profile tools with additional protection plate for flat broaching tools (keyway tools)
- 3-sided enclosed splash guard cabin with tool storage (ideal for profile broaching)
- External control panel (connected via Harting connector)

Remarks:
The machine has been completely overhauled, the machine body has been fully refurbished. The following wear parts have been replaced:
- New trapezoidal spindles and spindle nuts made of cast, wear-resistant bronze
- All bearings and seals have been renewed
The coolant system (pump, check valve, and drain valve) including coolant/lubricant swiveling system is new
- Coolant supply is controlled by a solenoid valve, switchable via the swiveling system
- The drawbridge, clamping jaws, and rack segments are new
- A deactivatable clamping jaw monitoring has been installed (additional safety for operator & tool breakage)
- Safety door with interlock, signal indicator, and door lock
- The tool length setting system has been relocated outside the machine enclosure
- Additional end position limit switches have been installed
- Complete electrical system (control cabinet) is new
- No PLC installed, machine is electrically maintenance-friendly
- New drive motor (by SEW Germany) with brake
- Machine has been newly painted with 2-component structural paint

General
The twin spindle drive ensures smooth and central pulling force as well as constant broaching speed (broaching speed selectable at 3m/min or 6m/min).
Due to its design, the machine is quick and easy to set up for broaching with flat broaching tools for keyway slots.
Thanks to the universally designed drawbridge and machine table, broaching with profile and flat broaching tools is possible without the use of additional pull heads.

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