Roku-Roku CEGA SSS-300/400 High-Torque 3-Axis CNC Milling Center
Reviewed by Steve Brown, Precision Milling Specialist Iron Machine Tool | Nearly 16 years selling and supporting OPS-Ingersoll and Roku-Roku precision milling centers across Minnesota, Wisconsin, Iowa and Illinois.
CEGA SSS-300 CNC Milling Machine
CEGA SSS-300 CNC Milling Machine
Iron Machine Tool distributes the Roku-Roku CEGA SSS-300/400 to precision manufacturers across Minnesota, Wisconsin, Iowa and Illinois. Built around a "super hybrid concept" design, the CEGA SSS-300/400 pairs high-speed spindle performance with serious cutting torque. The SSS-300 runs an oil-mist lubricated 20 HP AC spindle to 30,000 RPM; the SSS-400 moves to 40,000 RPM at 7.4 HP. Both variants use an HSK-E40 tool holder interface sized for heavier tooling loads, with an automatic tool changer configurable at 20, 40, or 60 positions to match the complexity of your work. Machine travels of 20.0 x 16.1 x 12.2 in and a table work area of 25.5 x 16.1 in provide meaningful working envelope for mold work, complex fixturing, and high-mix production. The Fanuc 31i-B5 controller and a modular, expandable base make this a machine shops can configure now and reconfigure later as their production demands shift.
Technical Specifications
| Specification | SSS-300 / SSS-400 |
| Spindle Speed | 200 to 30,000 RPM (SSS-300) / 200 to 40,000 RPM (SSS-400) |
| Spindle HP | 20 HP (SSS-300) / 7.4 HP (SSS-400) |
| Spindle Lubrication | Oil Mist |
| Spindle Taper | HSK-E40 |
| Machine Travels X x Y x Z | 20.0 x 16.1 x 12.2 in (508 x 409 x 310 mm) |
| Table Work Area X x Y | 25.5 x 16.1 in (648 x 409 mm) |
| Tool Changer (ATC) | 20, 40, or 60 Position |
| Machine Weight | 11,464 lb (5,200 kg) |
| Machine Height | 100 in (2,540 mm) |
| Floor Space Required | 95.0 x 114.0 in (2,410 x 2,895 mm) |
| CNC Controller | Fanuc 31i-B5 |
CEGA SSS-300/400 Key Capabilities
- High-Torque Spindle in Two Configurations
The SSS-300 delivers 20 HP at up to 30,000 RPM, which is the configuration for harder materials, larger end mills, and deeper roughing passes where torque matters more than raw RPM. The SSS-400 runs to 40,000 RPM at 7.4 HP for applications where smaller-diameter tooling and high surface speeds are the priority. Both use an oil-mist lubricated AC motor spindle with a wide operating range from 200 RPM, which accommodates roughing and finishing in the same setup without a spindle swap.
- HSK-E40 Tool Holder Interface
The HSK-E40 taper handles heavier tooling loads than smaller-profile interfaces like HSK-E25. Clamping force and tool runout consistency at operating RPM directly affect surface finish and tool life in hard milling and die work. The CEGA is built around an interface that does not become the limiting factor when the work demands larger tooling.
- Configurable Automatic Tool Changer: 20, 40, or 60 Positions
The ATC scales to the complexity of the work. A 20-position carousel fits high-mix, shorter-run applications where setup flexibility matters more than raw tool library depth. The 40- and 60-position options support complex parts requiring a large tool library, reducing setup interruptions across long-running jobs. This is specified at order; the modular design means it is not a permanent constraint.
- Fanuc 31i-B5 CNC Controller
The same Fanuc 31i-B5 control used across the OPS-Ingersoll and Roku-Roku precision milling center lineup. Shops already running 31i-B5 on other machines transition operators immediately. Program compatibility across the Roku-Roku line is a real production benefit when running multiple machines from the same cell.
- Modular and Expandable Design
The CEGA SSS-300/400 is built on a modular architecture. The ATC configuration selected at purchase is not fixed. As production demands shift toward longer run complexity or higher part counts per setup, the machine can be reconfigured rather than replaced. This is the machine OPS-Ingersoll positions for shops that need the investment to remain useful into the future.
Ready to evaluate the CEGA SSS-300/400 for your shop?
Contact Steve Brown at Iron Machine Tool for a direct application discussion. Authorized Roku-Roku distributor serving MN, WI, IA and IL.
Why Source Your Roku-Roku VMC Through Iron Machine Tool
Iron Machine Tool is an authorized distributor of Roku-Roku precision milling centers, serving manufacturers across Minnesota, Wisconsin, Iowa and Illinois. Steve Brown brings nearly 16 years of direct experience selling and supporting precision milling centers in this region. That experience shows up before a purchase decision is made: Steve works through your part geometries, tolerances, spindle torque and speed requirements, tooling selection, and ATC needs to make sure the SSS-300 or SSS-400 is actually the right fit for your application. If it is not, he will tell you.
Regional manufacturers benefit from distributor-level application support, machine integration guidance, and a direct line to the people who know these machines technically, not just commercially.
Contact Steve Brown directly to discuss your application before committing to a specification.
Who Uses the CEGA SSS-300/400
The CEGA SSS-300/400 is the right machine for manufacturers running complex, tight-tolerance work where both torque and speed matter:
Mold and Die Shops
Heavy cavity work, hard milling in tool steel, and large electrode production where the SSS-300's 20 HP torque handles material removal rates that would exceed a micro-milling spindle's capabilities.
Aerospace and Defense Suppliers
Precision milling on structural components, housings, and close-tolerance parts where dimensional consistency across a long production run is non-negotiable.
Automotive Component Suppliers
Fixture machining, die work, and precision component production at volumes that justify the 40- or 60-position ATC configuration to minimize setup interruptions.
Medical Device Manufacturers
Precision machining on implants, instruments, and complex geometry components where surface quality and tight tolerance control are required from first part to last.
Production Machine Shops
High-mix, tight-tolerance work where the flexible ATC configuration and wide spindle speed range from 200 to 30,000 or 40,000 RPM consolidate multiple operations onto one machine and reduce setups.
Frequently Asked Questions CEGA SSS-300/400
A: The SSS-300 has a 20 HP spindle running to 30,000 RPM; the SSS-400 has a 7.4 HP spindle running to 40,000 RPM. Both share the same machine frame, travels, table, HSK-E40 tool holder, and ATC options. The SSS-300 is the higher-torque configuration for harder materials and larger tooling where cutting force matters more than peak RPM. The SSS-400 trades some torque for a higher RPM ceiling, which benefits smaller-diameter tooling and high-speed finishing passes.
A: The machine uses HSK-E40 tool holders. This interface handles heavier tooling loads and provides the clamping force and runout consistency needed for both high-torque hard milling and high-speed precision work.
A: The automatic tool changer is available in 20, 40, or 60 position configurations. The right selection depends on the complexity of your parts and the size of the tool library your applications require. The modular design supports reconfiguration after purchase as production needs change.
A: The machine runs a Fanuc 31i-B5 CNC controller, the same control platform used across the OPS-Ingersoll and Roku-Roku precision milling center lineup. Shops already running Fanuc 31i-B5 on other machines get immediate operator familiarity and program compatibility across machines.
A: X x Y x Z travels are 20.0 x 16.1 x 12.2 in (508 x 409 x 310 mm) with a table work area of 25.5 x 16.1 in (648 x 409 mm).
A: The CEGA SSS-300/400 is designed for high-speed precision milling, drilling, and tapping, with particular strength in hard milling, mold and die work, graphite electrode production, and precision component machining in harder materials. The SSS-300 configuration adds meaningful torque for applications where material hardness and tooling diameter make raw RPM a secondary consideration.
A: Yes. Iron Machine Tool distributes Roku-Roku precision milling centers across Minnesota, Wisconsin, Iowa and Illinois. Contact Steve Brown to discuss your application, site requirements, or machine integration questions before purchase.
Ready to evaluate the CEGA SSS-300/400 for your shop?
Contact Steve Brown at Iron Machine Tool for a direct application discussion. Authorized Roku-Roku distributor serving MN, WI, IA and IL.