Pinnacle BX900DD
Image: pinnacle-mc.com, Pinnacle
Key Specifications
Max Spindle
Spindle Taper
Tool Capacity
Table Size
Spindle Power
Accuracy
How much does the Pinnacle BX900DD cost?
Price estimate
We do not have a price for the Pinnacle BX900DD that we can stand behind, so we show no number. Configuration, options and installation move the final price a long way: a quote is the reliable figure.
Overview
The Pinnacle BX900DD is the direct-drive version of the BX900, with DD motors on both the B-axis head and the Ø800 mm (Ø31.5 in) C-axis table. Each rotary axis is listed at 50 rpm, and the head clamps with 2,950 Nm (2,175.9 lb-ft).
On a machine this large the gain is in contouring. A worm-gear head at 16.6 rpm, as on the base BX900, becomes the slowest axis in a 5-axis move across a big surface; here the head keeps pace with the table. Rotary positioning accuracy is 10"/10" and repeatability 6"/6".
The envelope is unchanged: 1,500 mm (59.1 in) by 900 mm (35.4 in), with Z of Vertical 1,000 / Horizontal 1,100 mm, over a 1,700x850 mm (66.9x33.5 in) table. Load capacity is 1,200 kg (2,646 lb) on the rotary table.
Spindle data match the base machine: DIN40, 15,000 rpm, 15/19.4 kW (20.1/26.0 hp). The spindle centre sits 950 mm (37.4 in) from the column. Linear rapids are 20/20/16 m/min, so this is a machine that earns its keep on long, continuous 5-axis cuts and not on rapid point-to-point work. It weighs 15,000 kg (33,069 lb) and draws 50 kVA.
Full Specifications
| Parameter | Value |
|---|---|
| Table Size | 1,700x850 mm (66.9x33.5 in) |
| X Axis Travel | 1,500 mm (59.1 in) |
| Y Axis Travel | 900 mm (35.4 in) |
| Z Axis Travel | Vertical 1,000 / Horizontal 1,100 mm (Vertical 39.4 / Horizontal 43.3 in) |
| Max Table Load | 1,200 kg (2,646 lb) |
| T-Slots | 18x150x5 (W x D x N mm) |
| Spindle Taper | DIN40 |
| Spindle Bearing Inner Diameter | Ø 70 mm (Ø 2.8 in) |
| Spindle Center to Column | 950 mm (37.4 in) |
| Max Spindle Speed | 15,000 rpm |
| Draw Bar Force | 900±100 kgf |
| Spindle Motor Power | 15/19.4 kW (20.1/26.0 hp) (con/S6 60%) |
| Spindle Torque | 71.6/172 Nm (52.8/126.9 lb-ft) (con/max) |
| B Axis Drive | Direct drive |
| B Axis Range | ±120° |
| B Axis Speed | 50 rpm |
| B Axis Clamp Torque | 2,950 Nm (2,175.9 lb-ft) |
| Rotary Table Type | EMBEDDED |
| Rotary Table Drive Type | Direct drive |
| Rotary Table Diameter | Ø800 mm (Ø31.5 in) |
| C Axis Speed | 50 rpm |
| Rotary Table Load | 1,200 kg (2,646 lb) |
| Rapid Traverse Xyz | 20/20/16 m/min |
| Cutting Feed Rate | 10,000 mm/min |
| Tool Magazine Type | PLATE |
| Tool Capacity | 30(60) |
| Max Tool Diameter (full magazine) | Ø75 mm (Ø3.0 in) |
| Positioning Accuracy | 0.005 mm |
| Positioning Accuracy Rotary Axes | 10"/10" (B/C rotary axis(sec)) |
| Repeatability | 0.003 mm |
| Repeatability Rotary Axes | 6"/6" (B/C rotary axis(sec)) |
| Air Requirement | 6 kg/cm² |
| Power Requirement | 50 kVA |
| Coolant Tank Capacity | 700 L |
| Machine Weight | 15,000 kg (33,069 lb) |
| Machine Height | 3,450 mm (135.8 in) |
| Floor Space | 4,450x4,340 mm (175.2x170.9 in) (L x W) |
Specifications sourced from pinnacle-mc.com — verified 2026-10-04
Strengths & Limitations
Strengths
- Direct-drive B and C axes at 50 rpm on a large-envelope machine
- 2,950 Nm (2,175.9 lb-ft) B-axis clamp torque
- 10"/10" rotary positioning accuracy
- Ø800 mm (Ø31.5 in) table rated for 1,200 kg (2,646 lb)
Limitations
- Linear rapids of 20/20/16 m/min
- Maximum tool diameter is Ø75 mm (Ø3.0 in) despite the machine's size
- 3,450 mm (135.8 in) tall and 15,000 kg (33,069 lb)
Best For
Frequently Asked Questions
01
Both rotary axes. The swing head driver type is Direct drive at 50 rpm with 2,950 Nm (2,175.9 lb-ft) of clamp torque, and the embedded rotary table is direct drive at 50 rpm.
02
The BX900 has a worm-gear B axis at 16.6 rpm with rotary accuracy of 14"/10". The BX900DD is listed at 50 rpm and 10"/10". Travels, table, spindle and the 15,000 kg weight are the same.
03
A built-in DIN40 spindle at 15,000 rpm with a 15/19.4 kW (20.1/26.0 hp) motor and 71.6/172 Nm (52.8/126.9 lb-ft) of torque. Draw bar force is 900±100 kgf.
04
Positioning accuracy of 0.005 mm and repeatability of 0.003 mm on X, Y and Z. The B/C rotary axes are listed at 10"/10" and 6"/6".
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