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Series D

Helical gearboxes with parallel shafts for industrial applications

D series reducers are helical gear drive units with parallel input and output shafts. Designed for a wide range of industrial applications, they offer exceptional reliability, high efficiency, and great installation versatility thanks to their multiple mounting options.

Couple nominal : 130 - 18.000 Nm

Engine power: 0.12 - 160 kW

Output speed: 0.1 - 580 rpm

Configurations: 10 different sizes

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Main features

One-piece cast iron crankcase design for exceptional rigidity and durability
Two or three-stage configuration in the same casing for optimal compactness
Advanced bearing solutions to support high radial and axial loads
Multiple output shaft options (hollow shaft, solid shaft, flange, hollow and solid splines)
Specific extruder option for extrusion machines (Type DRE)
Parallel input and output trees for simplified integration
Option to extend up to six reduction stages with an additional reducer

Product range

Our D series comprises 10 different sizes covering a wide torque range from 130 to 18,000 Nm, designed for the most demanding industrial applications requiring extended reduction ratios and high reliability.

Detailed technical data

Setting	Value	Unit
Couple nominal	130 - 18.000	Nm
Engine power	0,12 - 160	kW
Output speed	0,1 - 580	rpm
Reduction ratio	4 - 24.963	-
Degree of protection	IP55, IP65, IP66	-
Serving temperature	-20°C to +120°C	°C
Typical yield	94 - 97%	%

Size chart

Reduced size	Report range [i]	Couple nominal [Nm]	Hollow shaft diameter [mm]
D07	6 - 180	150	Ø25
D17	5 - 143	200	Ø30
D27	5 - 2.907	450	Ø35
D28	4 - 3.800	600	Ø40
D37	4 - 4.820	820	Ø40
D47	4 - 6.136	1.550	Ø50
D57	4 - 10.147	3.000	Ø60
D67	4 - 9.508	4.300	Ø70
D77	4 - 24.963	8.000	Ø90
D87	6 - 20.226	13.000	Ø110
D97	7 - 20.556	18.000	Ø120

Technical advantages

Characteristic	Profit
Monoblock crankcase	Superior structural rigidity and optimal sealing against oil leaks
Helical gears	Quiet operation, high efficiency and smooth power transmission
Multiple tree options	Maximum adaptability to different mechanical configurations
High-capacity bearings	Extended service life even under significant radial and axial loads
Extended configurations	Ability to achieve very high reduction ratios up to 24.963:1

Available options and accessories

Standard and servomotor-specific output flanges
Electromagnetic brake motors (24V/220V/380V)
Anti-deflection systems for critical applications
High-resolution pulse encoders (512-1024 ppr)
External fan cooling for frequency-variable applications
Special coatings for corrosive or ATEX environments
Integrated temperature and vibration sensors

Areas of application

The D series gearboxes are designed for a wide range of industrial applications requiring high reduction ratios and high reliability:

Transport machinery - Conveyors, bucket elevators, industrial tractors
Food processing industry - Mixers, blenders, processing machines
Material handling equipment - Hoists, winches, lifting systems
Machine tools - Lathes, milling machines, machining centers
Plastics and rubber industry - Extruders, injection molding machines
Renewable energy - Solar trackers, orientation systems

Competitive advantages

Installation versatility

With its multiple mounting options (through the sides of the housing, torque arm or output flange) and its various shaft configurations, the D series adapts perfectly to all space constraints and mechanical configurations.

Performance and efficiency

Helical gear technology ensures high efficiency (94-97%), quiet operation and optimal power transmission, reducing energy consumption and operating costs.

Modularity and extensibility

The modular design allows the reduction to be extended up to six stages with additional reducers, offering maximum flexibility for evolving technical requirements and adaptation to future constraints.

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