Johnford DMC-4000x2800-R2-AC4
Image: johnford.com.tw, Johnford
Key Specifications
Spindle Taper
Tool Capacity
Table Size
Spindle Power
distance between columns
x axis travel
How much does the Johnford DMC-4000x2800-R2-AC4 cost?
Price estimate
We do not have a price for the Johnford DMC-4000x2800-R2-AC4 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
Among the Large DMC models, the Johnford DMC-4000x2800-R2-AC4 is the high-speed one. Its head carries a spindle that runs from 50 to 20,000 rpm with 21 / 24 kW (28.2 / 32.2 hp), on a machine with 4,000 mm (157.4 in) of X, 3,600 mm (141.7 in) of Y and 1,066 mm (42 in) of Z.
The maker's table gives two taper codes for it, AC41 with a No.40 taper and AC42 with HSK A63. Both are small-taper, high-speed interfaces, and the tool limits follow: Ø100 mm (Ø3.9 in) maximum diameter, 320 mm (12.6 in) length, 10 kg (22 lb). The page does not print the swivel ranges of the head, so the angular reach has to come from Johnford's quotation.
Put those figures on a 4,200 x 2,200 mm (165.3 x 86.6 in) table rated 20,000 kg (44,000 lb) and the intended work is clear enough. Large moulds, stamping dies for body panels, and models or patterns need long finishing passes with ball-nose tools at high rpm over a big, heavy block.
Head clearance costs height. The spindle nose can stand 150~1,216 mm (5.9~47.9 in) above the table and the machine is 6,280 mm (247.2 in) tall, against 4,550 mm (180 in) for the DMC-4000x2800x800. Weight is 65,000 kg (143,000 lb). For the same frame with a No.50 or HSK A100 spindle and 31 / 40 kW (41.6 / 53.6 hp), Johnford lists the DMC-4000x2800-R2-AC5.
Full Specifications
| Parameter | Value |
|---|---|
| Distance Between Columns | 2,800 mm (110.2 in) |
| Table Size | 4,200 x 2,200 mm (165.3 x 86.6 in) |
| X Axis Travel | 4,000 mm (157.4 in) |
| Y Axis Travel | 3,600 mm (141.7 in) |
| Z Axis Travel | 1,066 mm (42 in) |
| W Axis Travel | 1,000~2,500 mm (39.4~98.4 in) |
| Distance Spindle Nose to Table | 150~1,216 mm (5.9~47.9 in) |
| Spindle Taper | AC41:No.40; AC42:HSK A63 |
| Spindle Speed | 50~20,000 rpm |
| Spindle Motor Power | 21 / 24 kW (28.2 / 32.2 hp) |
| Rapid Traverse Xyz | 12 / 12 / 10 m/min (472 / 472 / 394 ipm) |
| Cutting Feed Rate | 1~10,000 mm/min (0.04~394 ipm) |
| Max Tool Diameter Adjacent Pockets | Ø75 mm (Ø3 in) |
| Tool Capacity | 40 tools Std. (60, 80, 120 Opt.) |
| Max Tool Diameter (full magazine) | Ø100 mm (Ø3.9 in) |
| Max Tool Length | 320 mm (12.6 in) |
| Max Tool Weight | 10 kg (22 lb) |
| Tool Selection | Bi-direction random type, Shortest path |
| Max Table Load | 20,000 kg (44,000 lb) |
| Machine Length | 10,900 mm (429 in) |
| Machine Width | 6,500 mm (256 in) |
| Machine Height | 6,280 mm (247.2 in) |
| Machine Weight | 65,000 kg (143,000 lb) |
Specifications sourced from johnford.com.tw — verified 2026-10-04
Strengths & Limitations
Strengths
- Spindle speed range of 50~20,000 rpm with 21 / 24 kW (28.2 / 32.2 hp)
- 3,600 mm (141.7 in) of Y and 1,066 mm (42 in) of Z travel
- 20,000 kg (44,000 lb) table load under a high-speed head
- Choice of No.40 (AC41) or HSK A63 (AC42) spindle taper
Limitations
- Tools limited to 10 kg (22 lb) and Ø75 mm (Ø3 in) with adjacent pockets filled
- Machine height of 6,280 mm (247.2 in)
- The maker's page gives no swivel ranges for the head
- Semi-enclosure as standard, and Z rapid of 10 m/min (394 ipm)
Best For
Frequently Asked Questions
01
A 50~20,000 rpm spindle rated 21 / 24 kW (28.2 / 32.2 hp). The taper is No.40 in the AC41 version and HSK A63 in the AC42 version, as coded in the maker's table.
02
The DMC-4000x2800-R2-AC5 has a No.50 or HSK A100 spindle at 50~10,000 rpm with 31 / 40 kW (41.6 / 53.6 hp), 20 kg (44 lb) tools and a weight of 68,000 kg (149,600 lb). The DMC-4000x2800-R2-AC4 runs to 20,000 rpm with 21 / 24 kW (28.2 / 32.2 hp), takes 10 kg (22 lb) tools and weighs 65,000 kg (143,000 lb).
03
X 4,000 mm (157.4 in), Y 3,600 mm (141.7 in), Z 1,066 mm (42 in), over a 4,200 x 2,200 mm (165.3 x 86.6 in) table. The distance between columns is 2,800 mm (110.2 in), so the Y travel is longer than the opening between the columns.
04
Renishaw TS-27R tool touch probe, Renishaw NC4 laser tool probe and Renishaw OMP60 workpiece probe are optional, as is high pressure coolant through the spindle or tool tip at 20 bar. The standard coolant is an external 2 bar supply with spindle nozzles.