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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: 580 kg
Overhaul: 3/2023 by Wiemers AG

General / Technical Data:
Unused, overhauled mechanical vertical broaching machine Rausch RS 4 with current “CE” marking
Pulling force: 40 kN (4,000 kg)
Broaching speeds: 3 m/min and 6 m/min
Return speed: 6 m/min
Maximum stroke: 1,000 mm
Maximum tool length: 1,200 mm
Table size / Working area: 540 x 340 mm / 450 x 250 mm
Table opening: Ø 90 mm for standard broaching mandrels
Workpiece diameter: unlimited
Dimensions (H x W x D): 2,350 mm x 900 mm x 1,000 mm (with splash guard cabin)
Motor: 4.4 kW / 5.5 kW Power supply: 400 Volt / 50 Hz

Accessories / Special Equipment:
- Drive with 2 speeds
- Safety door with safety interlock and chip chute
- Chip chute with tool tray
- Electric monitoring of clamping jaws (tool removal control to prevent unintentional return of the pull bridge)
- Integrated coolant system with solenoid valve (controlled via swivel system)
- Patented coolant/lubricant swivel system
- Externally adjustable tool length setting system (replicable across machines)
- 4 central lubrication points for the trapezoidal spindle drive
- Closed centring plate for profile tools with additional protection plate for flat broaching tools (keyway tools)
- 3-sided closed splash guard cabin with tool tray (ideal for profile broaching)
- External control panel (connected via Harting plug connector)

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

General Information:
The dual-spindle drive ensures a smooth and central pulling point as well as a constant broaching speed (optionally 3 m/min or 6 m/min).
By design, the machine is quick and easy to set up for broaching with flat tools for keyway cutting.
Thanks to the universally designed pull bridge and machine table, broaching with profile and flat broaching tools is possible without using additional pull heads.

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