Gleason Phoenix 650G
Key Specifications
Max Workpiece ⌀
axes
max module
max face width
cutting process
cutting method
Overview
The Gleason Phoenix 650G is Gleason's large-capacity CNC bevel gear generating machine for spiral bevel and hypoid gears up to 650 mm (25.6 in) workpiece diameter. It extends the proven Phoenix platform architecture to heavy-duty industrial, truck, and off-highway applications where bevel gears are substantially larger than automotive passenger car components. The Phoenix 650G is used in truck axle manufacturing, construction equipment final drives, agricultural machinery, and large industrial gearboxes.
Like its smaller Phoenix siblings, the 650G uses Gleason's face-milling bevel gear process and is designed to operate with both wet and dry cutting depending on the application and material. The larger module capacity — up to module 16 — addresses the coarser pitches common in truck axles, heavy off-highway equipment, and large industrial drives where gear durability under shock loading takes priority over noise-optimized hypoid geometry.
The 650G's machine structure is scaled to handle the substantially higher cutting forces generated by large-diameter, large-module bevel gear cutting. The thermally stable polymer concrete base and reinforced column support maintain alignment under these loads. The workpiece spindle is rated for heavy ring gears up to several hundred kilograms, and the machine is designed for integration with heavy-duty gantry loading systems for production environments.
Gleason's GEMS software on the Phoenix 650G provides the same integrated cutting, probing, and correction workflow as the 280G, with additional capability for the complex tooth geometry modifications required for noise optimization of truck and industrial bevel gears. Lapping and testing operations can be coordinated through GEMS for complete bevel gear manufacturing cell management. New Phoenix 650G machines are typically priced in the $1,800,000–$2,600,000 range.
Full Specifications
| Parameter | Value |
|---|---|
| Axes | 6 (X, Y, Z, A, B, C synchronized CNC) |
| Max Workpiece Diameter | 650 mm (25.6 in) |
| Max Module | 16 mm (DP 1.6) |
| Max Face Width | 130 mm (5.1 in) |
| Cutting Process | Face-milling (completing and FORMATE single-cycle) |
| Cutting Method | Wet or dry cutting with carbide or HSS cutter heads |
| Max Workpiece Weight | 400 kg (882 lb) |
| Workpiece Spindle Speed | Up to 600 RPM |
| Tool Spindle Speed | Up to 2,000 RPM |
| Machine Bed | Polymer concrete (Granitan) |
| CNC Control | Gleason GEMS on Siemens Sinumerik 840D sl |
| Machine Dimensions | 5,200 x 3,200 x 3,200 mm (205 x 126 x 126 in) |
| 1 844 Md Cancertoggle Navigation | NCI-Designated Comprehensive Cancer Center |
| 1 844 Md Cancer | Toggle navigation |
| Manufacturer | Ermak |
| Model | Fibermak |
| Capacity | 90,000 kg |
Specifications sourced from machinio.com — verified 2026-03-28
Strengths & Limitations
Strengths
- 650 mm workpiece diameter and module 16 capacity spans the full range of truck axle, heavy off-highway, and large industrial bevel gear applications — one platform covers a wide application breadth
- 400 kg workpiece weight capacity with heavy-duty spindle accommodates large truck ring gears and industrial bevel gears without special fixturing compromises
- GEMS software provides the same integrated closed-loop correction and SPC workflow as the automotive Phoenix 280G, bringing automotive-grade process control to heavy industrial bevel gear production
- Both wet and dry cutting capability provides flexibility across different materials and application requirements
Limitations
- Price range of $1.8M–$2.6M restricts the Phoenix 650G to well-capitalized manufacturers with consistent large bevel gear production volumes
- Cycle times for large-module, large-diameter bevel gears are significantly longer than automotive gears — production throughput must be carefully matched to machine investment
- Machine footprint and heavy workpiece handling infrastructure requirements (gantry, cranes) add facility preparation cost on top of machine purchase price
Best For
Frequently Asked Questions
01
The Phoenix 650G is structurally scaled for substantially higher cutting forces at module 16 vs. module 8 on the 280G. The workpiece spindle is rated for 400 kg vs. the 280G's lighter-duty spindle. The 650G also supports both wet and dry cutting, whereas the 280G is optimized for automotive dry cutting. Application software on the 650G covers the broader geometry range — including large module industrial bevel gears with different tooth proportion standards than automotive hypoid gears.
02
The Phoenix 650G uses Gleason's face-milling process, which produces Gleason-format bevel gears (localized tooth bearing, circular arc tooth profile in the normal section). Klingelnberg's Palloid and face-hobbing processes produce different tooth geometry. The two formats are not interchangeable. Shops committed to Gleason tooling and the face-milling process should specify the Phoenix 650G; shops requiring Klingelnberg-format gears should evaluate Klingelnberg's C-series bevel gear machines.
03
Gleason offers bevel gear lapping machines (Gleason 600 Lapper and others) that integrate with the Phoenix 650G through the GEMS software ecosystem. Lapping corrects minor tooth geometry errors and improves surface finish after generating cutting. GEMS can coordinate cutting corrections based on lapping results in a complete bevel gear manufacturing cell. For hardened gear applications, grinding rather than lapping is used, typically on a separate Gleason bevel gear grinder.
04
Lead times for large CNC bevel gear machines like the Phoenix 650G are typically 12–24 months from order to delivery, reflecting the machine's complexity and made-to-order manufacturing. Customers should contact Gleason's sales team early in their production planning cycle to secure delivery slots. Gleason maintains regional application centers that can support process development and tooling design during the lead time period.
05
Gleason works with industrial machinery financing providers and may offer structured payment terms for large capital equipment purchases. Trade-in programs for older Gleason bevel gear machines may be available depending on the machine's age, condition, and configuration. Contact Gleason's North American sales team (headquartered in Rochester, New York) to discuss financing options specific to your purchase.
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