Star SR20 RIV Type B - 2016

Used Star SR20 RIV Type B 2016 CNC Sliding Head lathe FMB 3-36 Magazine Bar Feeder inc smaller channel set UB20-2000 High Pressure Coolant System (2000 Psi/12 Outlets) LNS MH500 Swarf Conveyor (Low Discharge Style) Long Parts Ejection FireTrace Suppression Running Hours - 29, 237 Selection of Driven & Static Tool Holders This is a rare opportunity to purchase one of the best high end 20mm CNC sliding head lathes. Machine can be seen running in the Midlands area.

2016 Star SR-20RIV Type B – High-Precision Swiss-Type Sliding Head Lathe The Star SR-20RIV Type B represents one of the most refined iterations of Star’s proven SR series — designed to deliver exceptional accuracy, flexibility, and reliability in small-diameter, complex component manufacturing. Released as part of the SR-20RIV generation, this model combines Star’s advanced control system, modular tooling configuration, and versatile machining capability in both guide bush and non-guide bush modes. Machine

Overview The SR-20RIV Type B is a 20mm capacity sliding head lathe engineered for demanding

applications across the aerospace, medical, automotive, and precision engineering sectors. Its Type B configuration enhances driven tooling capacity and improves chip control and productivity on multi-process operations. This 2016 model benefits from Star’s Fanuc 31i-B CNC control system, offering intuitive programming, improved processing speed, and advanced synchronisation across main and sub-

spindle operations. With simultaneous 8-axis machining, the SR-20RIV Type B allows complete machining of complex parts in a single setup — reducing cycle times and ensuring consistent dimensional accuracy.

Technical Specification s Specification Details Maximum Machining Diameter 20mm Maximum Z-Axis Travel (Guide Bush Mode) 205mm Main

Spindle Speed 10,000 rpm Sub

Spindle Speed 10,000 rpm Number of Controlled Axes 8 (X1, Y1, Z1, C1, X2, Z2, C2, B) Main

Spindle Motor Power 3.7 / 7.5 kW Sub

Spindle Motor Power 1.5 / 2.2 kW Number of Tool Stations Up to 41 Driven Tool Speed 10,000 rpm (front and rear positions) Guide Bush System Convertible – guide bush / non-guide bush operation CNC Control Fanuc 31i-B Coolant Tank Capacity 180 litres Machine Weight (approx.) 3,000 kg

Key Features and Advantages 1. Convertible Guide Bush System One of the standout features of the SR-20RIV Type B is the ability to operate with or without a guide bush, offering flexibility for different production runs. • With guide bush: Ideal for long, slender parts requiring high rigidity. • Without guide bush: Perfect for shorter components, reducing bar wastage and setup time. This adaptability makes the SR-20RIV an excellent choice for subcontractors handling varied work. 2. Enhanced Driven Tool Capability The Type B version provides additional driven tooling stations and an optimized tool layout for simultaneous machining on both main and sub

spindle s. This configuration allows for efficient cross drilling, milling, and end-face machining — all within compact cycle times. 3. High-Speed, High-Accuracy Performance Equipped with precision

spindle bearings, Star’s renowned thermal stability design, and a powerful control system, the SR-20RIV maintains micron-level accuracy even during extended production. Combined with C-axis indexing on both

spindle s, it supports full contouring and complex part geometries. 4. Compact and Accessible Design Despite its capability, the SR-20RIV Type B maintains a compact footprint, ensuring easy access for setup, tool changes, and maintenance. The machine’s ergonomic layout enhances productivity on the shop floor.

Applications The 2016 Star SR-20RIV Type B is particularly suited to: • Medical components (bone screws, dental implants, surgical instruments) • Aerospace fasteners and precision fittings • Automotive sensor housings and connectors • High-precision instrumentation and electronics parts

Summary The 2016 Star SR-20RIV Type B remains one of the most versatile and proven Swiss-type sliding head lathes on the market. Combining high-speed machining, flexible tooling, and guide bush convertibility, it continues to deliver top-tier performance for precision part manufacturers. Whether you’re upgrading from earlier SR models or expanding your capacity with a reliable, multi-axis sliding head machine, this SR-20RIV Type B offers outstanding value and capability in today’s subcontracting environment.