12 sizes · 1,250 to 100,000Nm · 1 to 4 stages · ratios up to 3,000:1 · inline or right-angle
The HPL Series is Motovario’s modular range of industrial planetary gear reducers, designed in 2022 for drives that need high torque density and low rotational speed. It comes in 12 sizes, inline (HL) and bevel helical (HB) versions with one to four reduction stages, a choice of solid, splined and hollow outputs, and foot, flange or shaft mounting.
Planetary gearboxes share the load between several planet gears running around a central sun gear, which gives very high torque in a compact, coaxial package. The HPL Series uses a nitrided steel ring gear, case-hardened sun and planet gears, and high-strength spheroidal cast iron output modules optimised with FEM analysis. Gear load capacity is calculated to ISO 6336 and bearings to ISO 281.
The range runs in 12 sizes, from size 010 at 1,250Nm to size 1000 at 100,000Nm nominal output torque, with one to four reduction stages and ratios from around 3:1 up to 3,000:1. It is built in two layouts: HL inline (coaxial) and HB bevel helical, for right-angle drives. Each is available with an IEC or NEMA motor flange (HL/HB), a motor flange with flexible coupling (PHL/PHB), a solid input shaft (IHL/IHB) or as a compact geared motor (CHL/CHB), and the input modules are shared with Motovario’s HBS series.
Outputs include a keyed solid shaft, a splined solid shaft to DIN 5482, a splined hollow shaft, a hollow shaft with shrink disc and a wheel flange, with output shafts up to 120mm on sizes up to 380. Units can be foot mounted, flange mounted or shaft mounted, and NBR output seals are standard, with VR or VRM reinforced seals on request. The VP version pairs an HPL planetary stage with a Motovario NMRV worm first stage for very high ratios, with a torque limiter option.
| Specification | HPL Series |
|---|---|
| Type | Industrial planetary gear reducer / geared motor |
| Layouts | HL inline (coaxial); HB bevel helical (right-angle) |
| Nominal output torque | 1,250 to 100,000Nm |
| Sizes | 12: 010, 020, 030, 050, 080, 130, 180, 220, 380, 500, 750, 1000 |
| Reduction stages | 1, 2, 3 or 4 |
| Ratios | From around 3:1 up to 3,000:1 |
| Average efficiency | 0.97 (1 stage); 0.94 (2 stages); 0.91 (3 stages); 0.88 (4 stages) |
| Input versions | HL/HB IEC or NEMA motor flange; PHL/PHB motor flange with flexible coupling; IHL/IHB solid input shaft; CHL/CHB compact geared motor |
| Output versions | CS keyed solid shaft; SS splined solid shaft (DIN 5482); HS splined hollow shaft; HM hollow shaft with shrink disc; wheel flange |
| Output shaft | Up to 120mm (sizes 010 to 380) |
| Mounting | Foot, flange or shaft mounted (pendular) |
| Construction | Nitrided steel ring gear; case-hardened sun and planet gears; spheroidal cast iron output modules |
| Lubrication | Oil bath; supplied without oil unless a fill is ordered; expansion tank for vertical mounting positions |
| Seals | NBR output seals standard; VR or VRM reinforced seals on request |
| Accessories | Backstop device, torque arm, wheel flange, axial fixing washer; torque limiter on VP combined units |
| Combined version | VP: HPL planetary with NMRV/NMRV-P worm first stage, sizes VP P613 to VP P1183, three stages |
| Design standards | Gears ISO 6336; bearings ISO 281 |
| Manufacture | Formigine and Ubersetto plants, Modena, Italy |
| Size | Nominal torque Mn2 (Nm) | Size | Nominal torque Mn2 (Nm) |
|---|---|---|---|
| 010 | 1,250 | 180 | 18,000 |
| 020 | 2,400 | 220 | 25,000 |
| 030 | 2,800 | 380 | 40,000 |
| 050 | 5,800 | 500 | 50,000 |
| 080 | 10,100 | 750 | 75,000 |
| 130 | 13,200 | 1000 | 100,000 |
Source: Motovario HPL brochure HPL/2026/REV.1/EN (range, sizes and nominal torque per size) and Motovario TECHNICAL CATALOGUE HPL / IEC / STD / EN / REV.1 / 2026 (sizes 010 to 380: versions, efficiency, shafts, lubrication, accessories); Motovario HPL product page. Checked 2 November 2026.
For technical information, brochures and further product details, visit our downloads page.
Drives that need high torque at low output speed in a compact space. Motovario lists cranes and lifts, thickeners, solar trackers, crushers, conveyor belts and mixers among typical HPL applications.
HL is the inline (coaxial) version, with input and output on the same axis. HB adds a bevel helical stage to turn the drive through 90 degrees for right-angle layouts.
Yes. With a splined hollow shaft or a hollow shaft with shrink disc, the unit mounts directly on the driven shaft and is restrained by a torque arm. Foot and flange mounted versions are also available.
HPL units run in an oil bath and are normally supplied without oil, to be filled on installation, unless a factory fill is ordered. Vertical mounting positions use an expansion tank, so forced lubrication is not needed.
A version of the HPL range that uses a Motovario NMRV worm gearbox as the first stage, ahead of the planetary stages. It gives very high ratios in a compact unit, in sizes VP P613 to VP P1183, with a torque limiter option. See the NMRV worm gearbox page for the worm range.
Motovario manufactures the HPL Series at its Formigine and Ubersetto plants in the Modena area of Italy.
Send us the output torque, speed and mounting you need, or the details of the unit you are replacing, and we will specify the HPL gear reducer.
Contact
Betech 100pt Ltd
Four Square Buildings, Thomas Street
Heckmondwike, West Yorkshire, WF16 0LS
Telephone: 01924 411921
Email: sales@betech.co.uk
Opening hours: 8:00 to 17:00
