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CST Drive System
CST65

CST Drive System

CST65

The HBT CST65 gearbox is suitable for use as conveyor gearbox installed on drive frames and fitted to their input shafts. There are two designs available for most CST drive systems: an in-line gearbox design (the P gearboxes) and an angular gearbox design (the KP gearboxes).

Top Specs

Maximum Output Torque
650 000 Nm (479,415 lb/ft)

Max. Input Speed
1,800 rpm

Rated Power P
up to 1200 kW (1,958 hp)

A CST gearbox comes in three parts: a supply unit, a first planetary gear stage and an output unit comprising a second planetary gear stage. The KP gearbox also comes in three parts. The supply unit and output unit are the same as the ones from the P gearbox, but the first planetary gear stage is replaced by a bevel helical gearbox unit. The KP gearbox design is available in a left-handed and in a right-handed version. It is also possible to mount the electro-hydraulic controller either inside or outside the supply unit.

The roller bearings of the bevel gear shaft are lubricated by forced lubrication via the built-in oil pump (usually responsible for cooling oil supply to the CST clutch). All other gearings and roller bearings are lubricated by means of splash lubrication.

Reduction ratios of 33:1, 39:1 and 50:1 are available. In addition to the standard CST65 gearbox, we offer the CST65 S gearbox. The S version comes with a sideways mounted electro-hydraulic controller, an extra lube oil filter and two independent cooling circuits (including separate heat exchangers) instead of one.

Depending on the particular ratio, the permissible input power of the gearbox can be up to 1200 kW/1,632 hp at a mains frequency of 50 Hz ( ≈ 1,485 rpm) or 1440 kW/1,958 hp at a mains frequency of 60 Hz (≈ 1,782 rpm). The permissible output torque is 650,000 Nm (max for 3 seconds). The rated continuous output torque is 255,000 (i=33).

Specifications / Technical Data

Maximum Output Torque (for 3 sec)

KP-45/P-45 CST650 000 Nm479,415 lb/ft
Rated Power P
Ratio i[-]
Rated Power P
(n = 1,485 rpm)
Rated Power P
(n = 1,782 rpm)
281200 kW1,958 hp
331200 kW1,958 hp
391200 kW1,958 hp
45900 kW1,468 hp
50800 kW1,305 hp

Dimensions

KP-65 CST
Length
Width
Height

2910 mm
1530 mm
1060 mm

114.6 in
60.2 in
41.7 in
P-65 CST
Length
Width
Height

1887 mm
1120 mm
1060 mm

74.3 inbr>44.1 in
41.7 in

Capacity

KP-65 CST
Oil Quantity
Gearbox Weight (without oil)

800 L
10 800 kg

211 gal
23,980 lb
P-65 CST
Oil Quantity
Gearbox Weight (without oil)

500 L
7300 kg

132 gal
16,094 lb

Requirements of Cooling Water

Required Cooling Water25 L/min6.60 gal/min
Maximum Water Inlet Temperature25° C/298.15 K77° F/298.15 K

Shaft Design

Input Shaft (cylindrical)DIN 5480-W 120×4DIN 5480-W 120×4
Output Shaft with Internal ToothingDIN 5480-N 320×10DIN 5480-N 320×10

Download Spec Sheet

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Controlled Start Transmission Drive System CST65