Hallvard GearworksDatasheet · EN

Gear drives built for steel mills and round-the-clock lines

Helical and bevel-helical reducers from 5 to 120 kNm, built to order in eight weeks with a three-year warranty.

1.Drive lineup

Product	Description	Specifications
HG-H helical reducer	Parallel-shaft reducer for conveyors, mixers, and mill stands.	Torque to 120 kNm Ratio 6.3–450 : 1 Efficiency 97%
HG-C cardan and chain drive	Universal-joint shafts and roller chain drives for rolling mills and kilns.	Torque to 80 kNm Shaft length to 4 m
HG-B bevel-helical gearbox	Right-angle drive for tight layouts and bucket elevators.	Torque to 90 kNm Ratio 5–400 : 1
Forced lubrication unit	Pump, cooler, and filter that keep heavy gearboxes at working temperature.	Flow 20–200 L/min Filter 25 µm

9,800+

gearboxes delivered since 1991

countries with installed units

8weeks

standard build time

48h

spare-part dispatch target

Model	Type	Max torque	Ratio	Input power
HG-H40	Helical	40 kNm	6.3–315 : 1	Up to 160 kW
HG-H80	Helical	80 kNm	6.3–400 : 1	Up to 315 kW
HG-H120	Helical	120 kNm	8–450 : 1	Up to 500 kW
HG-B90	Bevel-helical	90 kNm	5–400 : 1	Up to 355 kW

3.1Hot rolling mill	A steel plant replaced six aging reducers with HG-H120 units on the same foundations and halved unplanned stops in the first year.
3.2Cement kiln	HG-C cardan drives turn a 4.2 m kiln around the clock, with oil changes once every 12 months.

4.1Can you match the footprint of our current gearbox?

Yes. Send us the old drawing or measurements and we build to the same shaft heights and bolt pattern.

4.2Do you service gearboxes on site?

Our field engineers inspect, realign, and replace bearings on site. Most visits are scheduled within a week.