Johnford DMC-4100
Key Specifications
Spindle Taper
Tool Capacity
Table Size
Spindle Power
distance between columns
x axis travel
How much does the Johnford DMC-4100 cost?
Price estimate
We do not have a price for the Johnford DMC-4100 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
At 4,100 mm (161.4 in) of X travel, the Johnford DMC-4100 is the longest machine on the Small-to-medium DMC page and the only size there with no H version: Johnford lists it with the BT-40 / CAT-40 spindle alone. The table is 4,200 x 1,150 mm (165.3 x 45.3 in), Y travel is 1,300 mm (51.2 in) and Z travel is 800 mm.
That tells a buyer how Johnford sees the machine. A four metre table with a 6,000 kg (13,200 lb) load rating and a 40-taper spindle is built for long light-alloy and plate parts: aircraft stringers and spars, long extrusions, rail-vehicle profiles, sign and panel work. For those, the 17 / 20 kW (22.8 / 26.8 hp) built-in spindle at 15,000, 18,000 or 20,000 rpm with HSK A63 is the natural configuration. The geared alternative is 7.5 / 11 kW (10.1 / 14.8 hp) at 8,000 rpm.
The casting differs slightly from the shorter models. The table is 1,150 mm wide where the DMC-2100 table is 1,100 mm, and the machine is 3,515 mm (138.4 in) wide and 3,880 mm (152.7 in) high. Its length is 10,850 mm (427 in), which is the dimension that decides whether it fits a bay. Weight is 30,100 kg (66,370 lb).
Rapid traverse is 12 / 15 / 12 m/min (472 / 591 / 472 ipm) and cutting feed 1~10,000 mm/min. With a single 24-tool arm type changer at one position, a tool change from the far end of the table costs travel time each way, so tool order matters more here than on short machines. Linear scales are optional and worth specifying on an axis this long.
Full Specifications
| Parameter | Value |
|---|---|
| Distance Between Columns | 1,300 mm (51.2 in) |
| Table Size | 4,200 x 1,150 mm (165.3 x 45.3 in) |
| X Axis Travel | 4,100 mm (161.4 in) |
| Y Axis Travel | 1,300 mm (51.2 in) |
| Z Axis Travel | 800 mm |
| Distance Spindle Nose to Table | 150~950 mm (5.9~37.4 in) |
| Spindle Taper | BT-40 / CAT-40; HSK A63(Opt.) |
| Spindle Bearing Diameter | 70 mm (2.8 in) |
| Spindle Speed | 8,000, 10,000/12,000 rpm (Opt.); 15,000, 18,000, 20,000 rpm |
| Spindle Motor Power | 7.5 / 11 kW (10.1 / 14.8 hp) Hi Lo Gear; 17 / 20 kW (22.8 / 26.8 hp) Built-in |
| Rapid Traverse Xyz | 12 / 15 / 12 m/min (472 / 591 / 472 ipm) |
| Cutting Feed Rate | 1~10,000 mm/min (0.04~394 ipm) |
| Max Tool Diameter Adjacent Pockets | Ø75 mm (Ø3 in) |
| Tool Capacity | Arm type 24 / 32 / 40 (Opt.) |
| Max Tool Diameter (full magazine) | Ø100 mm (Ø4 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 | 6,000 kg (13,200 lb) |
| Machine Dimensions | 10,850 x 3,515 x 3,880 mm (427 x 138.4 x 152.7 in) |
| Machine Weight | 30,100 kg (66,370 lb) |
Specifications sourced from johnford.com.tw — verified 2026-10-04
Strengths & Limitations
Strengths
- 4,100 mm (161.4 in) of X travel on a double column frame
- 4,200 x 1,150 mm (165.3 x 45.3 in) table with 1,300 mm (51.2 in) of Y
- Built-in HSK A63 spindle option to 20,000 rpm with 17 / 20 kW (22.8 / 26.8 hp)
- 30,100 kg (66,370 lb) machine weight
- Full enclosure listed as a standard accessory
Limitations
- No No.50 version is listed at this length
- Table load of 6,000 kg (13,200 lb) across a 4.2 m table
- Needs 10,850 mm (427 in) of length
- X rapid of 12 m/min (472 ipm) makes end-to-end moves slow
Best For
Frequently Asked Questions
01
The table is 4,200 x 1,150 mm (165.3 x 45.3 in) and X travel is 4,100 mm (161.4 in). Y travel is 1,300 mm (51.2 in), Z travel 800 mm, and the columns are 1,300 mm (51.2 in) apart.
02
Johnford's table for this page has no DMC-4100H column; the DMC-4100 is listed only with BT-40 / CAT-40 and HSK A63 as an option. The shorter DMC-3100H is the longest No.50 model on this frame, and the DMC-S page lists a DMC-4100SH on a wider frame.
03
10,850 x 3,515 x 3,880 mm (427 x 138.4 x 152.7 in), length by width by height, and 30,100 kg (66,370 lb). Foundation bolts and levelling pads are standard accessories.
04
The table offers a built-in spindle of 17 / 20 kW (22.8 / 26.8 hp) at 15,000, 18,000 or 20,000 rpm, which the accessory list ties to HSK A63. The standard Hi Lo Gear drive is 7.5 / 11 kW (10.1 / 14.8 hp) at 8,000 rpm, with 10,000/12,000 rpm optional.
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