Starrag Droop+Rein T/TF Series
Key Specifications
Tool Capacity
Spindle Power
machine type
variants
spindle torque
number of axes
Overview
The Starrag Droop+Rein T/TF Series is a family of portal-design gantry machining centers for heavy-duty 5-axis machining of very large workpieces. The T has a moveable cross rail; the TF has a fixed cross rail for maximum rigidity.
Delivers spindle power up to 150 kW with 12,000 Nm torque, among the most powerful gantry machining centers worldwide. Features continuous 5-axis with auto-changing fork-type milling heads, wear-free hydrostatic guideways, and a thermo-symmetric ram with integrated C-axis.
Multiple table configurations (single, double, round, rotating, pallet) and tool changers up to 500 tools. Excels in tool/mold making, aircraft manufacturing, and power generation. Optional palletizing and rotary table for mill-turn.
Siemens SINUMERIK 840D sl or SINUMERIK ONE. New machines: $4,000,000 to $12,000,000+.
Full Specifications
| Parameter | Value |
|---|---|
| Machine Type | Portal/gantry, 5-axis |
| Variants | T (moveable cross rail) / TF (fixed) |
| Spindle Motor Power | Up to 150 kW (201 HP) |
| Spindle Torque | Up to 12,000 Nm (8,851 ft-lb) |
| Number Of Axes | 5 (continuous) |
| Head Type | Auto-changing fork-type milling heads |
| Guideway Type | Hydrostatic (wear-free) |
| Ram Design | Thermo-symmetric with integrated C-axis |
| Tool Capacity | Up to 500 tools |
| Table Configurations | Single, double, round, rotating, pallet |
| CNC Control | Siemens SINUMERIK 840D sl / SINUMERIK ONE |
Specifications sourced from starrag.com — verified 2026-03-28
Strengths & Limitations
Strengths
- 150 kW / 12,000 Nm for extraordinary heavy-duty cutting force
- Hydrostatic guideways eliminate stick-slip and wear
- Auto-changing fork-type heads for rapid roughing/finishing transition
- Multiple table configurations for specific production scenarios
- Up to 500 tools for complex programs
- Thermo-symmetric ram maintains accuracy during extended machining
Limitations
- One of the largest machine tool capital investments
- Massive footprint requires purpose-built infrastructure
- Lead times of 12-24+ months
- High operating costs
Best For
Frequently Asked Questions
01
T has moveable cross rail for height flexibility. TF has fixed cross rail for maximum rigidity.
02
T/TF: portal design, 150 kW / 12,000 Nm. FOGS HD: overhead gantry, 100 kW / 7,500 Nm.
03
All metallic materials including titanium, nickel superalloys, tool steels, cast iron, aluminum.
04
Yes, with optional rotary table and palletizing for large rotation-symmetric components.
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