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AMT Machine Tools

Star CNC Machine Tool

SR-20JII Type A/B

by Star CNC Machine Tool

The SR-20JII Type A/B CNC swiss lathe combines advanced Swiss-type CNC technology with high-speed, precision machining, making it ideal for a wide range of small, intricate parts.

ø20mm (25/32 in), OP: ø23mm

Max. Machining Diameter

205 mm (8 in)

Max. Headstock Stroke

max. 10,000 min⁻¹

Main Spindle Speed

SR-20JII Type A/B
SR-20JII Type A/B — detail view
Swiss Lathe

The SR-20JII Type A/B CNC swiss lathe combines advanced Swiss-type CNC technology with high-speed, precision machining, making it ideal for a wide range of small, intricate parts. With its versatile design, this lathe allows for seamless turning, milling, and drilling operations, maximizing productivity. Spindle speeds up to 10,000 RPM Accommodates up to 30 tool stations for complex part production Multi-axis control for simultaneous machining with main and sub-spindle 10,000 RPM | 20 mm Bar Capacity | 7 Axis | 30 Tool Stations

Key Features

SR-20JII Type A/B Features

Standard features that set this machine apart in demanding manufacturing environments.

Precision & Performance

  • Spindle speeds up to 10,000 RPM
  • Multi-axis control for simultaneous machining with main and sub-spindle
  • 5-Spindle Sleeve Holder
  • 2-Spindle Front Sleeve Holder
  • Power-Driven Attachment
  • Rapid Feed Rate
  • Main Spindle Indexing Angle
  • Main Spindle Speed
  • Main Spindle Motor

Built-In Extras

  • Accommodates up to 30 tool stations for complex part production
  • Max. Machining Diameter
  • Max. Headstock Stroke
  • Tool
  • Dimensions (W x D x H)
  • Coolant Tank Capacity
Full Specifications

Star CNC SR-20JII Type A/B Technical Details

Complete specifications, standard features, and optional upgrades.

Max. Machining Diameter
ø20mm (25/32 in), OP: ø23mm
Max. Headstock Stroke
205 mm (8 in)
Main Spindle Speed
max. 10,000 min⁻¹
Main Spindle Motor
2.2 kW (continuous) / 3.7 kW (10min./25%ED)
Axis Control
7-axis with C-axis (Main/Sub)
Tool Stations
30
Rapid Feed Rate
35 m/min (X1, X2, Z1, Z2)
FAQ

SR-20JII Type A/B Questions

Answers to common questions about the SR-20JII Type A/B.

The main differences between the SR-20JII Type A and Type B models lie in their tooling configurations and capabilities. Type B features an 8-station back-working unit with Y-axis control, which provides additional flexibility for complex machining tasks. In contrast, Type A has a 4-spindle back-working unit without Y-axis control. This means that Type B can perform more complex and precise operations, especially for back-working, compared to Type A.

The SR-20JII and the SD-26 are both CNC Swiss-type automatic lathes, but they may differ in terms of their maximum machining diameters, tooling configurations, spindle speeds, and other specific features. Typically, the SR-20JII is designed for high precision and flexibility with its advanced tooling options and control systems, while the SD-26 may cater to different machining requirements. For a direct comparison, one would need to review the specific model specifications of the SD-26, as these details are not provided in the current context.

Industries that require high precision and flexibility in machining small to medium-sized complex parts benefit the most from the SR-20JII's features. This includes the medical equipment industry, aerospace sector, automotive components manufacturing, electronics, and precision engineering. The machine's advanced tooling and control systems make it ideal for producing intricate parts with tight tolerances. Contact our specialist for more technical details.

Yes, the SR-20JII is designed to handle large-scale production efficiently. Its robust construction, high-speed capabilities, and advanced control systems enable it to maintain precision over long production runs. The machine's automation features, such as the automatic centralized lubrication unit and parts conveyor, also contribute to its ability to run continuous production cycles with minimal downtime. Did you download CNC Swiss type automatic lathe brochure?

The SR-20JII features several key improvements over the SR-20J model, including increased flexibility with more tooling configurations, enhanced rigidity for improved accuracy, and the addition of a Y-axis control in the 8-station back-working unit for Type B. These enhancements allow for more complex and precise machining operations. The SR-20JII also likely incorporates the latest advancements in CNC technology, offering improved speed, efficiency, and user-friendly controls.

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