Mesin broaching

Rausch RS 4 / 1000

Manufacturer: Rausch (Haan/Rhld)
Model: RS 4/1000 Machine No.: 5027
Year of manufacture: 2001/2023 Weight: 580kg
Overhauled: 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 (4,000kg)
Broaching speeds: 3 m/min and 6 m/min
Return speed: 6 m/min
Maximum stroke: 1000mm
Maximum tool length: 1200mm
Table size / working 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

Accessories / special equipment:
- Dual-speed drive
- Safety door with interlock and chip chute
- Chip chute with integrated tool tray
- Electric clamping jaw sensing (tool removal control to prevent unintentional return of the carriage)
- Integrated coolant system with solenoid valve (operated via pivot system)
- Patented coolant/lubricant pivot system
- Externally adjustable tool length setting system (reproducible across machines)
- 4 central lubrication points for the trapezoidal spindle drive
- Closed centering plate for profile tools with additional protection plate for flat broach tools (keyway tools)
- Three-sided closed splash guard enclosure with tool tray (ideal for profile broaching)
- External control panel (connected via Harting connector)

Note:
The machine has been completely overhauled, and 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 renewed
- The coolant system (pump, check valve, and drain cock) including the coolant/lubricant pivot system is new
- Coolant supply is controlled by a solenoid valve, which can be operated via the pivot system
- The carriage as well as clamping jaws and gear segments are new
- A switchable clamping jaw monitoring system has been installed (additional safety for operator & to prevent tool breakage)
- A safety door with interlock, signal indicator, and door locking mechanism
- The tool length setting system has been relocated outside the machine enclosure
- Additional limit switches have been installed
- The complete electrical system (control cabinet) is new
- No PLC is installed; the machine is electrically maintenance-friendly
- New drive motor (by SEW Germany) with brake
- The machine has been newly painted with 2-component structural paint

General:
The double spindle drive ensures smooth and central pulling as well as a constant broaching speed (broaching speed selectable at 3 m/min or 6 m/min).
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Due to its design, the machine is quick and easy to set up for broaching with flat broach tools for keyway machining.
Thanks to the universally designed carriage and machine table, both profile and flat broaching can be performed without the need for additional pull heads.

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