Colchester CB-1600
Image: colchester.co.uk, Colchester
Key Specifications
Max Spindle
Spindle Taper
Table Size
Spindle Power
x axis travel
y axis travel
How much does the Colchester CB-1600 cost?
Price estimate
We do not have a price for the Colchester CB-1600 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 Colchester CB-1600 is the largest CNC bed mill Colchester lists, with a 2,200 x 500 mm (86.6 x 19.7 in) table and travels of 1,600 mm (63.0 in) in X, 700 mm (27.6 in) in Y and 700 mm (27.6 in) in Z. Colchester describes it as the model for large-scale machining operations that need extensive table space.
A table more than two metres long changes the kind of work a milling department can accept. Machine beds, long slideways, press brake tooling, structural members and multi-vice setups all fit, and the square 700 mm (27.6 in) Y and Z travels mean width and height are in proportion. The CB-1300 offers the same Z but 600 mm (23.6 in) of Y and a shorter table.
What stays constant across the bed mill range is the cutting end. The spindle is ISO 40 with a 3.7 kW (5.0 hp) inverter motor and 3,600 rpm, behind a back-geared headstock, and the quill travels 140 mm (5.5 in). So jobs are long in travel and light in cut. A shop should think of this as a large-capacity toolroom mill.
The structure is stress-relieved Meehanite cast iron with hardened and ground slideways, and the axes use ballscrews with 1:2 ratio timing belt pulleys to increase drive torque. The control is the Fanuc 0i-MF Plus with Manual Guide i or, optionally, a Siemens 828D with ShopMill. The page gives no table load, which a buyer of a machine this size will want in writing.
Full Specifications
| Parameter | Value |
|---|---|
| Table Size | 2,200 x 500 mm (86.6 x 19.7 in) |
| X Axis Travel | 1,600 mm (63.0 in) |
| Y Axis Travel | 700 mm (27.6 in) |
| Z Axis Travel | 700 mm (27.6 in) |
| Quill Travel | 140 mm (5.5 in) |
| Spindle Taper | ISO 40 |
| Max Spindle Speed | 3,600 rpm |
| Spindle Motor Power | 3.7 kW (5.0 hp) |
| CNC Control | Fanuc 0i-MF Plus (Manual Guide i) - (Option: Siemens 828D with ShopMill) |
Specifications sourced from colchester.co.uk — verified 2026-10-04
Strengths & Limitations
Strengths
- 2,200 x 500 mm (86.6 x 19.7 in) table
- 1,600 mm (63.0 in) of X travel
- 700 mm (27.6 in) of travel in both Y and Z
- Hardened and ground slideways, table and T-slots
- Conversational control: Fanuc 0i-MF Plus with Manual Guide i or Siemens 828D with ShopMill
Limitations
- 3.7 kW (5.0 hp) spindle on a machine with a table over two metres long
- 3,600 rpm maximum spindle speed
- Table load capacity is not published
- Tools are changed by hand; no tool changer is listed
Best For
Frequently Asked Questions
01
Table size is 2,200 x 500 mm (86.6 x 19.7 in). X-axis travel is 1,600 mm (63.0 in), Y-axis travel 700 mm (27.6 in), Z-axis travel 700 mm (27.6 in) and quill travel 140 mm (5.5 in). Overall machine dimensions and weight are not on the page.
02
The CB-1300 has an 1,800 x 450 mm (70.9 x 17.7 in) table with 1,300 mm (51.2 in) of X and 600 mm (23.6 in) of Y travel. The CB-1600 is longer and wider. Z travel, quill travel and the ISO 40 spindle with 3.7 kW (5.0 hp) are common to both.
03
3.7 kW (5.0 hp) from an inverter motor, at a spindle speed of 3,600 rpm, with an ISO 40 taper. The features list describes it as a 5HP motor and says the headstock uses heavy duty back gears for the high and low speeds.
04
Colchester lists precise ballscrews on the X and Y axes and says the XYZ axes use 1:2 ratio timing belt pulleys to increase drive torque. Slideways and gibs are Turcite-B coated, and the Y and Z slideways have steel covers.
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