You Ji DSM Series – Duplex Milling Machines

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You Ji DSM Series – Duplex Milling Machines

You Ji’s DSM heavy duty duplex or double-sided milling machine series was designed specifically for production squaring and chamfering of square and rectangular blocks. The machines are engineered to perform heavy duty machining with high accuracy and high throughput.

Longitudinal X-axis travels for the five-machine series range from 23.6″ (600 mm) to 72.8″ (1849 mm) and Y and Z axes’ cross-travel extends from 14.7″ (373 mm) to 35.4″ (900 mm). Rotary table sizes start at 20.5″ (520 mm) square and the largest versions are 39.4″ (1000 mm) square.

The machines combine a rigid rotary table with dual milling heads. Each milling head moves independently in the Z-axis on rigid box ways. The rotary table moves in the X-axis on roller type linear ways, indexes every 45°, and clamps via a Hirth coupling to maximize rigidity.

The milling heads feature high-horsepower, large-diameter spindles that produce high torque at low rpm to run large diameter cutters. Each spindle is powered by a 20 hp or 30 hp motor (depending on model) with a variable speed range. Spindle tapers are 50 or 60 taper equivalent.

The machines operate semi-automatically. After the workpiece is shuttled into the machine manually, the part is automatically centered and clamped to the rotary table via hydraulic cylinders that apply pressure to the workpiece in 3 steps, from light pressure while centering the part to high-pressure maximum clamping force. Quick change, modular upper and lower fixtures hold the workpiece in place. The machine comes with 10 sets of clamping fixtures in a variety of sizes and shapes tailored to the user’s work.

A workpiece probe verifies the raw material size and can also provide rapid first part inspection.

The Mitsubishi C-70 controller, with touch screen interface and a You Ji custom HMI (Human – Machine Interface), makes machine set-up and operation quick and easy and enables setup of the next job while machining is in process.

Specifications
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Items / Models
Travels / Capacity
Longitudinal Travel X-Axis
Cross Travel Head 1 Y-Axis
Cross Travel Head 2 Z-Axis
Spindle Nose to Table Center
Spindle Center to Table Top
Distance Between Spindle Noses
Workpiece Size Range
 
Max Workpiece tdickness
Cutter Size
Table / Rotary Table
Table Diameter
Max Workload on Table
Rotary Table Minimum Index Angle
Spindle (Standard)
Spindle Motor Power
Spindle Torque
Spindle Taper
Spindle Drive System
Spindle Speed
Ballscrews and Axis Motors
X-Y-Z Ballscrew Diameter
Ballscrew Type
 
Ballscrew Mounting Type
X-Y-Z Servo Motor HP
Servo Motor Mounting
Feeds
Rapid Traverse Rate X, Y, Z
Manual Cutting Feed Rate
Positioning Accuracy
Repeatability
Rotary Table Index Speed (90°)
Rotary Table Positioning Accuracy/Repeatability (arc seconds)
General
Coolant Tank Capacity
Machine Weight
Floor Space
Machine Power Source*
Air Source
DSM-480 DSM-630 DSM-800 DSM-1000 DSM-1200
23.6″ 43.3″ 51.1″ 61″ 72.8″
14.17″ 19.7″ 23.6″ 27.5″ 35.4″
14.17″ 19.7″ 23.6″ 27.5″ 35.4″
2.67″ – 16.65″ 2.87″ – 22.56″ 2.68″ – 26.3″ 4.72″ – 36.2″ 3.07″ – 38.5″
4.13″ 7.87″ 7.87″ 9.8″ 9.8″
5.35″ – 33.3″ 5.74″ – 45.1″ 5.35″ – 52.6″ 9.4″ – 72.4″ 6.1″ – 77″
.75″ x .75″ –
18.89″ x 18.89″
1.57″ X 1.57″ –
24.8″ X 24.8″
1.57″ x 1.57″ –
31.5″ x 31.5″
4.72 x 4.72 –
39.4″ x 39.4″
12.6″ X 12.6″ –
47.2″ X 47.2″
5.9″ (10″ Cutters) 9.1″ (10″ Cutters) 11.8″ (12.4″ Cutters) 15.7″ (16.5″ Cutters) 15.7″ (16.5″ Cutters)
10″ 10″ 12.4″ 16.5″ 16.5″
20.5″ x 20.5″ 20.5″ X 20.5″ 25.6″ x 25.6″ 33.5″ x 33.5″ 39.4″ x 39.4″
2,640 lbs. 2,640 lbs. 5,500 lbs. 5,500 lbs. 1,019 ft. lbs.
45° (8 Indexes) 45° (8 Indexes) 45° (8 Indexes) 45° (8 Indexes) 45° (8 Indexes)
20 HP x 2 20 HP x 2 20 HP x 2 30 HP x 2 30 HP x 2
140 ft. lbs. 583 ft. lbs. 583 ft. lbs. 1,109 ft. lbs. 1,109 ft. lbs.
NT-50 NT-50 NT-60 NT-60 NT-60
Belt Drive Belt Drive Belt Drive Belt Drive Belt Drive
170 – 1,000 RPM 132 – 250 RPM 132 – 250 RPM 75 – 101 RPM 75 – 101 RPM
1.57″ – 1.57″ – 1.57″ 2″ – 1.57″ – 1.57″ 2″ – 1.57″ – 1.57″ 2″ – 1.57″ – 1.57″ 2″ – 1.57″ – 1.57″
Class 3 Double Nut
Pre-loaded
Class 3 Double Nut
Pre-loaded
Class 3 Double Nut
Pre-loaded
Class 3 Double Nut
Pre-loaded
Class 3 Double Nut
Pre-loaded
Pre-tensioned Pre-tensioned Pre-tensioned Pre-tensioned Pre-tensioned
4.6 – 2.0 – 2.0 HP 5.2 – 5.2 – 5.2 HP 5.2 – 5.2 – 5.2 HP 9.0 – 6.0 – 6.0 HP 9.0 – 6.0 – 6.0 HP
Direct Coupled XYZ Direct Coupled XYZ Direct Coupled XYZ Direct Coupled XYZ Direct Coupled XYZ
590, 394, 394 IPM 590, 394, 394 IPM 590, 394, 394 IPM 590, 394, 394 IPM 590, 394, 394 IPM
.04 – 59.1 IPM .04 – 59.1 IPM .04 – 59.1 IPM .04 – 59.1 IPM .04 – 59.1 IPM
± .0003″ ± .0003″ ± .0003″ ± .0003″ ± .0003″
.0002″ .0002″ .0002″ .0002″ .0002″
2 Seconds 2 Seconds 2 Seconds 2 Seconds 2 Seconds
6 Arc Seconds / 3 Arc Seconds 6 Arc Seconds / 3 Arc Seconds 6 Arc Seconds / 3 Arc Seconds 8 Arc Seconds / 3 Arc Seconds 8 Arc Seconds / 3 Arc Seconds
100 Gallons 100 Gallons 100 Gallons 100 Gallons 130 Gallons
22,000 lbs. (est.) 24,200 lbs. (est.) 28,600 lbs. (est.) 46,200 lbs. (est.) 55,000 lbs. (est.)
134″ x 127″ x 92″ 161″ x 150″ x 116″ 196″ x 169″ x 118″ 225″ x 197″ x 126″ 252″ x 225″ x 126″
220V, 3 Phase, 150 Amps 220V, 3 Phase, 150 Amps 220V, 3 Phase, 150 Amps 220V, 3 Phase, 200 Amps 220V, 3 Phase, 200 Amps
90 PSI 90 PSI 90 PSI 90 PSI 90 PSI
Standard Equipment
  • Semi-enclosed Machine Guarding
  • Heat Exchanger for Control Cabinet
  • Chip Conveyor
  • Clamping Fixtures (10 sets)
  • Auto Positioning Device
  • Auto Detecting Device (probe)
  • Tools, Tool Box, Manuals
Optional Accessories
  • Additional Clamping Fixtures
  • Spindle Chiller
  • Multi-tap Transformer for High Voltage Operation
  • Full Machine Enclosure Guarding
  • 315mm Diameter Milling Cutters
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