Johnford DMC-3100S
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-3100S cost?
Price estimate
We do not have a price for the Johnford DMC-3100S 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
Johnford builds a three-metre, 40-taper double column machine in three widths, and the DMC-3100S is the middle one. It has 3,100 mm (122 in) of X, 1,778 mm (70 in) of Y and 800 mm (31.5 in) of Z, with a 3,200 x 1,500 mm (126 x 59 in) table.
The narrow choice is the DMC-3100, with 1,300 mm (51.2 in) of Y and a 6,000 kg (13,200 lb) table. The wide one is the DMC-3100P, with 2,300 mm (90.5 in) of Y and a machine weight of 35,000 kg (77,000 lb). Between them, the 3100S weighs 26,000 kg (57,270 lb) and carries 10,000 kg (22,000 lb), the same load the DMC-3100P is rated for. Unless the parts really are wider than 1,778 mm, the S frame gives the P frame's load rating in a footprint a metre narrower: 4,600 mm (181.1 in) across.
One detail changes at this length. The speed row of the table reads 8,000 and 10,000 rpm, with 12,000 rpm as an option. The 15,000 to 20,000 rpm figures printed for the two shorter S models are missing from the row, although the accessory list for the series still names them for the HSK A63 built-in spindle. Anyone buying this machine for high-speed finishing should get that point confirmed in writing.
Power is 7.5 / 11 kW (10.1 / 14.8 hp) with the Hi Lo Gear or 18.5 / 23 kW (24.8 / 30.8 hp) built-in. Rapids are 12 / 12 / 12 m/min (472 / 472 / 472 ipm).
Full Specifications
| Parameter | Value |
|---|---|
| Distance Between Columns | 1,796 mm (70.7 in) |
| Table Size | 3,200 x 1,500 mm (126 x 59 in) |
| X Axis Travel | 3,100 mm (122 in) |
| Y Axis Travel | 1,778 mm (70 in) |
| Z Axis Travel | 800 mm (31.5 in) |
| 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.) |
| Spindle Motor Power | 7.5 / 11 kW (10.1 / 14.8 hp) Hi Lo Gear; 18.5 / 23 kW (24.8 / 30.8 hp) Built-in |
| Rapid Traverse Xyz | 12 / 12 / 12 m/min (472 / 472 / 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 | 10,000 kg (22,000 lb) |
| Machine Dimensions | 8,693 x 4,600 x 3,883 mm (342.2 x 181.1 x 152.9 in) |
| Machine Weight | 26,000 kg (57,270 lb) |
Specifications sourced from johnford.com.tw — verified 2026-10-04
Strengths & Limitations
Strengths
- Carries 10,000 kg (22,000 lb), the same as the wider DMC-3100P, at 26,000 kg (57,270 lb) machine weight
- 3,200 x 1,500 mm (126 x 59 in) table with 3,100 mm (122 in) of X travel
- Built-in spindle option of 18.5 / 23 kW (24.8 / 30.8 hp)
- Standard full enclosure and 2 bar external coolant with spindle nozzles
Limitations
- The table's speed row stops at 12,000 rpm, and that figure is an option
- 7.5 / 11 kW (10.1 / 14.8 hp) geared drive is small for parts of this size
- Maximum tool length of 320 mm (12.6 in) restricts deep cavity work
- Needs a floor area of 8,693 x 4,600 mm (342.2 x 181.1 in)
Best For
Frequently Asked Questions
01
It depends on part width and weight. The DMC-3100 has 3,050 mm (120 in) of X, 1,300 mm (51.2 in) of Y and a 6,000 kg (13,200 lb) table. The DMC-3100S has 1,778 mm (70 in) of Y and a 10,000 kg (22,000 lb) table, but its rapids are 12 m/min (472 ipm) on every axis.
02
8,693 x 4,600 x 3,883 mm (342.2 x 181.1 x 152.9 in). The machine weighs 26,000 kg (57,270 lb), and foundation bolts and levelling pads are not on this series' accessory list, so ask what is supplied for installation.
03
BT-40 / CAT-40 as standard, with HSK A63 as an option. The spindle bearing diameter is 70 mm (2.8 in). The No.50 version of the same machine is the DMC-3100SH.
04
An external coolant supply at 2 bar with spindle nozzles, plus spindle air blast. High pressure coolant through the spindle or through the tool tip at 20 bar, with cartridge type filtration, is optional.