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Praktikant GS

Product catalog summary

Overview
The document provides detailed specifications and features of the Praktikant GS and VC conventional precision lathes by WEILER. These machines are designed for precision, efficiency, and operator safety, suitable for both industrial and craft environments.

Specifications

Working Range: Both models have a distance between centers of 650 mm, a center height of 160 mm, and a swing over bed of 320 mm.
Main Spindle: Features a spindle nose according to DIN 55027 size 5, with a spindle diameter in front bearing of 70 mm and a spindle bore of 40 mm.
Main Drive: The Praktikant GS has a drive power of 2.6/3.1 kW with a speed range of 48-2,500 rpm, while the Praktikant VC offers 6 kW with a speed range of 30-4,000 (5,000) rpm.
Feed Range: Both models offer 24 feed settings with longitudinal feeds ranging from 0.02-0.63 mm/rev and transverse feeds from 0.006-0.2 mm/rev.
Thread Cutting Range: Metric threads range from 0.25-8 mm, and English threads from 80-2 TPI.
Tailstock: Quill travel is 85 mm with a quill diameter of 40 mm and a taper to DIN 228 MT 3.

Features

Drive System: The Praktikant VC features a maintenance-free three-phase asynchronous motor with a frequency converter, allowing for load-independent constant speed and short speed regulating times.
Safety and Convenience: Includes automatic handwheel release, spindle brake, and safety potentiometer for speed optimization. The GS model received the GS mark for approved safety in 2003.
Digital Readout: The VC model includes a digital readout system for enhanced operation, offering features like direct speed input and constant cutting speed.

Construction

Headstock and Tailstock: Made from high-quality grey cast iron for low-vibration running and dynamic rigidity. The tailstock allows for fine taper turning.
Carriage and Slides: Plastic-coated guides for stick-slip-free operation, with centralized lubrication for smooth running.
Bed and Subbase: Constructed from grey cast iron with strong ribbing for resistance to bending and torsional forces.

Optional Equipment
Includes increased spindle speed, various chucks, collet clamping attachments, coolant attachment, and digital readout options.

Electrical Equipment

Praktikant GS: Operates on 400 V AC with a two-speed brake motor and safety features like emergency stop and mechanical braking.
Praktikant VC: Features a force-ventilated main motor with a frequency converter and safety potentiometer for speed adjustment.

Catalog excerpts

Conventional Precision Lathes Praktikant GS/VC www.weiler.de Service Conventional/Servo-Conventional Lathes Model Praktikant GS Cycle-Controlled Lathes CNC Lathes Radial Drilling Machines Long-term precision and operating convenience

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Praktikant GS/VC Model Praktikant VC Precision and Efficiency The “Praktikant“ lathe range proves that quality, safety, versatility and straightforward operation can be optimally combined. Regardless of whether one-off or small batch production is required in a handicraft or industrial environment or whether tools, jigs or fixtures are to be manufactured; the Praktikant proves itself as ideal choice for countless applications. It has an inherent versatility that can be expanded through an extensive range of accessories. Attention to detail is the best guarantee for operator safety: Automatic...

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The advantages of the conventional range are ultimate precision and operating convenience as well as refined technology. 4/4 Standard Design Main Spindle The main spindle is made of case hardened alloyed steel. It is supported by taper roller bearings to ensure high cutting performance and workpiece surface quality (Praktikant GS). Apron The apron is fully enclosed and also serves as the centralized lubrication system reservoir for carriage, cross slide and half nuts. Transfer of feed from the feed shaft through the worm gear is interrupted when turning against the stop by an intermediate sliding...

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Standard Equipment Praktikant GS • Socket for machine lighting 230 V • Driver plate 170 mm dia. with protection rim • Taper bush MT5 / MT3 • 2 Male centres MT3 • Multisuisse quick-change toolpost size A • Toolholder AD 2090 • Chuck guard with limit switch monitoring • Rear splash guard • Chip deflector • Change gearbox door with limit switch monitoring • Leadscrew and feed rod protection • Bed stop • Set of change gears 21-33-63-120 T • Central lubrication • 5 Shear pins • Set of wrenches • 2 Instruction manuals with spare parts list • Machine card • NCS enamel Standard Equipment Praktikant VC...

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Praktikant GS

Praktikant GS

Catalog excerpts

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