Bevel Gearbox
Suitable for applications where space is limited. These gearboxes changes the rotating axel by 90 degrees at the same time while reducing the speed of rotation.
Bevel gearboxes transmit output shaft torques are variating in different series from 0.55 kNm to 610 kNm.
Also custum made gearboxes are available to our customers for more information about custom made please contact our sales department.
Agitator Gearbox
Designed for vertical power transmission. Typical applications include paper pulp mixing and other fluid mixing. Most suited for heavy usage and high torque demands.
Bevel gearboxes transmit output shaft torques are variating in different series from 0.55 kNm to 103 kNm.
Also custom made gearboxes are available to our customers for more information about custom made please contact our sales department.
Helical Gearbox
Helical gearboxes have the highest efficiencies, making them suitable for applications where high torque demands make heat loss a significant factor
Helical gearboxes transmit output shaft torques are variating in different series from 0.53 kNm to 610 kNm.
Also custum made gearboxes are available to our customers for more information about custom made please contact our sales department.
Hydraulic Clutch
The NKHU oil operated multi-disc clutch series offers a compact transmission for a torque range of 1250 – 60,000 Nm.The standard configuration is free-standing but smaller sizes are available with SAE flanges. The clutch is self-contained in cast housing with mechanical and/or electric oil pressure pump, oil cooler, filter and alarm sensors. The clutches are set up for remote electrical operation via an electro-hydraulic valve for 24V dc or 240V ac supply with local manual control in case of loss of power supplies.
Right Angle Gear Unit
Typical applications are drives to tunnel thruster or azimuth thruster. Standard range size KV1V-DB to FB covering upto 3000 kW. With or without built-on hydraulic clutch.Stock housings and standard reduction gear ratios allow short delivery times. The KA range size, offers many shaft arrangements. Larger units and special ratios are available to meet customer requirements.
Combined Duty Gearbox
Promac offers a range of twin input,single output gearboxes with or without built-in oil operated clutches for diesel or electric motor drive. Also single input, twin output gearboxes which permit for example a clutched drive to an azimuth propulsion thruster and a continuous drive to a ship service alternator. There are many variations possible offering cost effective and space saving solutions.
Our Sales Department would be pleased to prepare a preliminary dimension drawing and specification to meet the application.
Parallel Shaft Gearboxes
A parallel shaft gearbox, type FV, in drive application to cycloidal propeller with the high speed shaft as the lower shaft eliminating cardian shafts.
Type FV – Vertical offset shafts.
FVC – with clutch.
Type FG – Horizontal offset shafts
FGC – with clutch.
These parallel shaft gearbox designs allow a choice of shaft configurations to optimize the mechanical transmission from main engine to the propulsion unit.


