sd-20

Features

Increased backworking capability

Mitsubishi built-in AC spindle motors on both main and back spindles

Mitsubishi built-in AC spindle motors on both main and back spindles

High precision built-in motor spindles from Mitsubishi deliver 10,000 rpm high speed and high torque throughout rpm range. The motor is an integral part of the spindle shaft and housing assembly. This allows spindle to rotate at higher speeds as a complete unit. The recently developed AC synchronous motor spindle offers higher efficiency, lower heat and higher torque.

Available in 12, 16 or 20 mm bar capacity

SD series covers different bar diameter sizes to match customer needs. SD-12, SD-16 and SD-20 offer 12, 16 and 20 mm bar capacities, respectively.

Modular “Combo” toolpost for backworking

The 4-station backworking toolpost is a modular setup that can hold either driven, or fixed tools or a mixture of both. It presents the user with more setup flexibility from one job to another.

C-axis on both main and back spindles

The SD-series is fully capable of milling, drilling and engraving with live tools. It comes with 0.1 degree C-axis as standard on both turning spindles. The full, continuous C-axis can interpolate with other linear axes simultaneously for helical and other complex tool motion.

Hydraulic disc braking on both main and back spindles for extra stability

Hydraulic disc braking is a standard on both main and back spindles. This feature can turn the spindle into an highly rigid indexer. There is also an option for two-stage hydraulic braking system that can stabilize the spindle without it being completely clamped to a stop.

Mitsubishi M70 2-channel CNC control

The new and improved Mitsubishi M70 CNC control is a 2 channel control that allows 2 independent toolpaths and provides machining on main and back spindles simultaneously. New high resolution LCD display and faster processing speed further increase user productivity.

Maximum of 30 tools

The addition of a new backworking toolpost increases maximum tool load from 26 to 30. Keeping more tools on the machine help reduce setup time for future jobs.

Tooling Layout

  • 7-axis control.
  • Up to 30 tools.
  • Built-in motor spindle for both main and back spindles.
  • Runs with or without guide bushing.

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Convertible to Chucker in Minutes

With the rough material chucking option, a user can easily convert SD series to run without the guide bushing. For parts with less overhang (machining length less than 3 times the bar diameter ), the rough material chucking option allows the main spindle to extend into the cutting area.

This added capability lowers running costs by

  1. leaving a shorter bar remnant and
  2. allowing the use of less expensive non-ground bar stock (as much as 0.1mm bar tolerance).

Changing from one configuration to another only takes minutes, allowing the user to choose to run the machine either with or without guide bushing as the needs change.

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Machine Specifications

ITEM SD-12 SD-16 SD-20
Working range Maximum turning diameter Ø12.7 mm 0.5 in Ø16.5 mm 0.65 in Ø20 mm 0.78 in
Max machining length per chucking 225 mm 8.85 in 225 mm 8.85 in 225 mm 8.85 in
Maximum drilling diameter Ø7 mm 0.27 in Ø10 mm 0.4 in Ø12 mm 0.47 in
Maximum tapping diameter M6 M8 M10
O.D. turning tools Number of tools 6 6 6
Tool Size 12 x 12 x 120 mm 12 x 12 x 120 mm 12 x 12 x 120 mm
I.D. turning tools for the front Number of tools 4 4 4
Tool size 10 mm (ER16) 10 mm (ER16) 10 mm (ER16)
Driven tools for the front Number of tools 3 3 3
Tool size 10 mm (ER16) 10 mm (ER16) 10 mm (ER16)
Speed 200~6,000 rpm 200~6,000 rpm 200~6,000 rpm
Radial driven tools Number of tools 6 6 6
Tool size 10 mm (ER16) 10 mm (ER16) 10 mm (ER16)
Speed 200~6,000 rpm 200~6,000 rpm 200~6,000 rpm
I.D. turning tools for the back Number of tools (maximum) 4 + 4 4 + 4 4 + 4
Tool size 10 mm (ER16) 10 mm (ER16) 10 mm (ER16)
Driven tools for the back (main toolpost) Number of tools 3 3 3
Tool size 7 mm (ER11) 7 mm (ER11) 7 mm (ER11)
Speed 200~6,000 rpm 200~6,000 rpm 200~6,000 rpm
Driven tools on backworking toolpost Number of tools (maximum) 4 4 4
Tool size 10 mm (ER16) 10 mm (ER16) 10 mm (ER16)
Speed 200~6,000 rpm 200~6,000 rpm 200~6,000 rpm
Main spindle Spindle speed range 200 ~ 10,000 rpm 200 ~ 10,000 rpm 200 ~ 10,000 rpm
Spindle contouring C axis 0.1° C axis 0.1° C axis 0.1°
Back spindle Spindle speed range 200 ~ 6,000 rpm 200 ~ 6,000 rpm 200 ~ 6,000 rpm
Max length for front ejection 225 mm 8.85 in 225 mm 8.85 in 225 mm 8.85 in
Spindle contouring C axis 0.1° C axis 0.1° C axis 0.1°
Rapid traverse X2 24 m/min 708 ipm 24 m/min 708 ipm 24 m/min 708 ipm
X1, Y1, Z1, Z2 30 m/min 1181 ipm 30 m/min 1181 ipm 30 m/min 1181 ipm
Motors Main spindle motor 2.2 kw 3 HP 2.2 kw 3 HP 2.2 kw 3 HP
Back spindle motor 2.2 kw 3 HP 2.2 kw 3 HP 2.2 kw 3 HP
X1-axis motor 1 kw 1.5 HP 1 kw 1.5 HP 1 kw 1.5 HP
Y1, Z1, X2, Z2 -axis motor 0.75 kw 1 HP 0.75 kw 1 HP 0.75 kw 1 HP
Coolant pump motor 0.75 kw 1 HP 0.75 kw 1 HP 0.75 kw 1 HP
Driven tool motor on main toolpost 1.5 kW 2 HP 1.5 kW 2 HP 1.5 kW 2 HP
Driven tool motor on backworking toolpost 0.4 kW 0.5 HP 0.4 kW 0.5 HP 0.4 kW 0.5 HP
OTHERS Center height 890 mm 35 in 890 mm 35 in 890 mm 35 in
Weight 1600 kg 3527 lbs 1650 kg 3637 lbs 1700 kg 3747 lbs
Machine size 12440 x 1430 x 1650 mm 96 x 56 x 65 in 12440 x 1430 x 1650 mm 96 x 56 x 65 in 12440 x 1430 x 1650 mm 96 x 56 x 65 in

Standard Accessories

  • Main spindle C axis function
  • Back spindle C axis function
  • Work light • Coolant system
  • Part-off detection sensor
  • Live bushing
  • Parts catcher
  • Hydraulic braking for turning spindles

Optional Accessories

  • Fixed bushing
  • Rough material chucking option (max. machining length = Bar diameterx3)
  • Chip conveyor + chip cart
  • Two-stage hydraulic braking for turning spindles