CRT Gearbox | CRTech

Connection Between Servo Motor and Machine Tool Spindle to realize two-stage speed and torque transmission.

Unique features

pneumatic or hydraulic cylinder drive

reduce the wear and heating of the parts

suitable for machine tools to work continuously for a long time

Lower cost

Using pneumatic or hydraulic cylinder drive, speed shifting mechanism, cylinder and clutching movement are integrated fully. Without any eccentric movement parts and using fewer parts, thus shifting operation more stable and more reliable.

In high-speed rotation conditions, the planetary gear set of the gearbox doesn’t participate in the work. The motor power is directly transferred to the output end through the connecting shafts, so as to reduce the wear and heating of the parts and improve the output efficiency.

The shell of the component is made of high-strength aluminium alloy, with ensures good heat dissipation, lightweight structure and is suitable for machine tools to work continuously for a long time.

Better performance-to-price ratio.

Two-speeds

Transmission connecting under low speed

under speed

Transmission connecting under high speed

high speed

Technical Specification

There are currently three main types available. According to the spindle torque, speed and power output requirements, the user can choose the appropriate two-speed planetary gearbox type.

2PG-100

2PG-160

2PG-250

Nominal Power

15 Kw

25 Kw

39 Kw

Nominal Speed

1500 rpm

Nominal Input Torque

100 Nm

160 Nm

250 Nm

Moment of Inertia

i=1

i=4

35 cm²

200 cm²

40 cm²

216 cm²

60 cm²

324 cm²

Circunferential BackLash

i=1

i=4

<15 Arcm in

<30 Arcm in

<15 Arcm in

<30 Arcm in

<15 Arcm in

<30 Arcm in

Max Output Torque (i=4)

400 Nm

640 Nm

1000 Nm

Max Allowed Input Speed

6000 rpm

CRT-100

Nominal Power: 15 Kw

Nominal Input: 1500 rpm

Nominal Input Torque: 100 Nm

Moment of inertia (i=1): 35 cm²

Moment of inertia (i=4): 200 cm²

Circunferential BackLash (i=1): <15 Arcm in

Circunferential BackLash (i=4): <30 Arcm in

Max Output Torque (i=4): 400 Nm

Max allowed input speed: 6000 rpm

CRT-160

Nominal Power: 25 Kw

Nominal Input: 1500 rpm

Nominal Input Torque: 160 Nm

Moment of inertia (i=1): 40 cm²

Moment of inertia (i=4): 216 cm²

Circunferential BackLash (i=1): <15 Arcm in

Circunferential BackLash (i=4): <30 Arcm in

Max Output Torque: 640 Nm

Max Allowed input speed: 6000 rpm

CRT-250

Nominal Power: 39 Kw

Nominal Input: 1500 rpm

Nominal Input Torque: 250 Nm

Moment of inertia (i=1): 60 cm²

Moment of inertia (i=4): 324 cm²

Circunferential BackLash (i=1): <15 Arcm in

Circunferential BackLash (i=4): <30 Arcm in

Max Output Torque: 1000 Nm

Max Allowed input speed: 6000 rpm

Connection Dimensions of Standard Motor

2PG-100

2PG-160

2PG-250

100

112

132

180

80 +/- 0.1

110 +/- 0.1

110 – 0.2

140 – 0.2

180

230

250

300

215

265

300

400

450

2PG-100

Connection Dimensions

h: 100

d: 38

i: 80 +/- 0.1

b: 180

e2: 215

S2: 14

2PG-160

Connection Dimensions
(center height 112)

h: 112

d: 48

i: 110 +/- 0.1

b: 230

e2: 265

S2: 15

Connection Dimensions
(center height 132)

h: 132

d: 42

i: 110 – 0.2

b: 250

e2: 300

S2: 15

2PG-250

Connection Dimensions
(center height 132)

h: 132

d: 42

i: 110 – 0.2

b: 250

e2: 300

S2: 15

Connection Dimensions
(center height 180)

h: 180

d: 65

i: 140 – 0.2

b: 300

e2: 400

a1: 451

S2: 18

Request a quote