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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
Overhauled: 3/2023 by Wiemers AG

General / Technical Data:
Unused, overhauled mechanical vertical broaching machine Rausch RS 4, with current “CE” certification
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 dimensions / 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 interlock and chip chute
- Chip chute with tool storage
- Electric clamp jaw sensing (tool removal monitoring to prevent unintentional retraction of the drawbridge)
- Integrated coolant system with solenoid valve (controlled via swing system)
- Patented coolant/lubricant swiveling system
- Externally adjustable tool length setting system (reproducible across multiple machines)
- 4 central lubrication points for the trapezoidal spindle drive
- Closed 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 plug connector)

Remarks:
The machine has been completely overhauled, the machine body thoroughly reconditioned. The following wear parts have been replaced:
- New trapezoidal spindles and spindle nuts made from cast, wear-resistant bronze
- All bearings and seals replaced
The coolant system (pump, check valve, and drain valve) including coolant/lubricant swing system is new
- Coolant supply is controlled via a solenoid valve, which can be switched over by the swing system
- The drawbridge as well as the clamping jaws and rack segments are new
- A deactivatable clamping jaw detection system has been installed (additional safety for operator & to prevent tool breakage)
- A safety door with interlock, signal display, and door lock
- The tool length adjustment system has been relocated outside the machine compartment
- Additional end-position limit switches have been installed
- Complete new electrical system (control cabinet)
- No PLC installed, machine is electrically maintenance-friendly
- New drive motor (SEW Germany) with brake
- The machine has been freshly painted with 2-component structural paint

General
The dual spindle drive ensures smooth, centralized pulling force and consistent broaching speed (broaching speed selectable: 3 m/min or 6 m/min).
By design, the machine is quick and simple to set up for broaching with flat broaching tools for keyway cutting.
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Thanks to the universally constructed design of the drawbridge and machine table, operation with both profile and flat broaching tools is possible without the need for additional drawheads.

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