Indexing Chucks

MD

MD is an automatic indexing chuck (4×90°) with hydraulic clamping and indexing. It is not self-centering.

Models

Machining parts having multiple machining axes, with conventional spindles, involves repositioning the part for each face: this causes loss of accuracy and downtime in the production cycle.

With indexing chucks, complete machining is performed with a single loading as rotation and indexing operations always occur with the spindle closed with the workpiece clamped.

Advantages

  • Made of special high-resistance hardened and case-hardened 60HRC steel (UNI 18NiCrMo5) for high precision, reliability and quality.
  • Indexing movement (Tecnomors patent): simple and reliable, with a single piston working in rotation and in clamping position. Indexing precision ± 1′.
  • Guiding system using two pre-loaded solid straight rollers radially and one axial bearing.
  • Seals against contamination by coolant, chips or dust.
  • Constant and long-lasting precision; easy installation to the machine.
  • Centrifugal-force compensation system for parts susceptible to deformation, for higher productivity.
  • The chucking piston is connected to a safety device that keeps the workpiece securely gripped even in the event of complete pressure loss.
  • Constant and automatic control of the indexing position and other parameters via a separate electronic interface (not supplied) by the machine CNC.

 

Metric Imperial
Model & Description Weight Diameter Clamping Surface Stroke
MD160 20.00 kg44.09 lb 160 mm6.30 in 13.85 cm²2.15 in² 10 mm0.39 in
MD205 29.00 kg63.93 lb 205 mm8.07 in 23.7 cm²3.67 in² 14 mm0.55 in
MD235 39.00 kg85.98 lb 235 mm9.25 in 23.7 cm²3.67 in² 14 mm0.55 in
MD260 50.00 kg110.23 lb 260 mm10.24 in 44.1 cm²6.84 in² 18 mm0.71 in
MD285 60.00 kg132.28 lb 285 mm11.22 in 44.1 cm²6.84 in² 18 mm0.71 in
MD300 70.00 kg154.32 lb 300 mm11.81 in 44.1 cm²6.84 in² 18 mm0.71 in
MD315 84.00 kg185.19 lb 315 mm12.40 in 63.6 cm²9.86 in² 23 mm0.91 in
MD350 104.00 kg229.28 lb 350 mm13.78 in 63.6 cm²9.86 in² 23 mm0.91 in
MD400 148.00 kg326.28 lb 400 mm15.75 in 86.5 cm²13.41 in² 30 mm1.18 in
MD425 169.00 kg372.58 lb 425 mm16.73 in 86.5 cm²13.41 in² 30 mm1.18 in
MD500 260.00 kg573.20 lb 500 mm19.69 in 103.8 cm²16.09 in² 40 mm1.57 in
MD550 340.00 kg749.57 lb 550 mm21.65 in 103.8 cm²16.09 in² 40 mm1.57 in
MD160
Weight
20.00 kg44.09 lb
Diameter
160 mm6.30 in
Clamping Surface
13.85 cm²2.15 in²
Stroke
10 mm0.39 in
MD205
Weight
29.00 kg63.93 lb
Diameter
205 mm8.07 in
Clamping Surface
23.7 cm²3.67 in²
Stroke
14 mm0.55 in
MD235
Weight
39.00 kg85.98 lb
Diameter
235 mm9.25 in
Clamping Surface
23.7 cm²3.67 in²
Stroke
14 mm0.55 in
MD260
Weight
50.00 kg110.23 lb
Diameter
260 mm10.24 in
Clamping Surface
44.1 cm²6.84 in²
Stroke
18 mm0.71 in
MD285
Weight
60.00 kg132.28 lb
Diameter
285 mm11.22 in
Clamping Surface
44.1 cm²6.84 in²
Stroke
18 mm0.71 in
MD300
Weight
70.00 kg154.32 lb
Diameter
300 mm11.81 in
Clamping Surface
44.1 cm²6.84 in²
Stroke
18 mm0.71 in
MD315
Weight
84.00 kg185.19 lb
Diameter
315 mm12.40 in
Clamping Surface
63.6 cm²9.86 in²
Stroke
23 mm0.91 in
MD350
Weight
104.00 kg229.28 lb
Diameter
350 mm13.78 in
Clamping Surface
63.6 cm²9.86 in²
Stroke
23 mm0.91 in
MD400
Weight
148.00 kg326.28 lb
Diameter
400 mm15.75 in
Clamping Surface
86.5 cm²13.41 in²
Stroke
30 mm1.18 in
MD425
Weight
169.00 kg372.58 lb
Diameter
425 mm16.73 in
Clamping Surface
86.5 cm²13.41 in²
Stroke
30 mm1.18 in
MD500
Weight
260.00 kg573.20 lb
Diameter
500 mm19.69 in
Clamping Surface
103.8 cm²16.09 in²
Stroke
40 mm1.57 in
MD550
Weight
340.00 kg749.57 lb
Diameter
550 mm21.65 in
Clamping Surface
103.8 cm²16.09 in²
Stroke
40 mm1.57 in

Designs

Indexing chucks are fully hydraulic, combining rotation, indexing, and clamping in one rigid unit machined from hardened 18NiCrMo5 steel.

A single-piston indexing system acts across a large divider pin surface for precision within one arc-minute, guided by a dual-row preloaded roller system and heavy-duty axial bearing for consistent, long-term accuracy.

Connect with EFFECTO

Find the right tool for your application today

Request 3D Model Download

* Denotes Required Field