ALM Worm Gearboxes
Compact aluminium die-cast worm speed reducers with universal mounting — sizes 25 to 150 for packaging lines, conveyors, food machinery, and light material handling.
Aluminium Die-Cast
Lightweight Worm Reducers with Universal Mounting
Anand Gears ALM aluminium worm gearboxes pack worm-gear reliability into a compact, lightweight aluminium die-cast housing. Ten sizes from ALM 25 to ALM 150 cover power ratings up to 18.5 kW and output torque to 1550 Nm, with single-stage ratios from 5:1 to 100:1 — and double-stage ALM+ALM combinations reaching 3600:1. The universal housing mounts in any orientation via foot, flange, torque arm, or direct shaft-mount, and the oil-filled design runs maintenance-free. Powder-coated aluminium offers weight savings and corrosion resistance that suit outdoor and food-industry installations.
Build Quality
ALM Construction & Materials
Every ALM gearbox combines a precision-ground worm mesh with a sealed, powder-coated aluminium housing.
Housing
Aluminium alloy die-cast housing, powder coated for corrosion resistance. Light enough for direct machine mounting without heavy support brackets, with fins that dissipate heat efficiently.
Worm & Gear Set
Case-hardened 20CrMnTi worm shaft ground to accuracy class 6, meshing with a tin bronze ZCuSn10Pb1 worm gear for smooth, quiet running and long service life.
Mounting & Output
One universal housing covers every orientation — foot, flange, torque arm, or shaft-mount — with hollow output bores from 20 mm to 50 mm or solid output shafts from 11 mm to 50 mm.
Engineering Data
ALM Technical Specifications
Performance parameters for all ten ALM sizes. Torque values at 1400 rpm input, service factor 1.0.
| Model | Centre Distance (mm) | Power (kW) | Ratio Range | Output Torque (Nm) | Output Shaft (mm) | Hollow Bore (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|
| ALM 25 | 25 | 0.06 – 0.12 | 5 – 100 | 2.6 – 11 | 11 | — | 0.7 |
| ALM 30 | 30 | 0.06 – 0.18 | 5 – 100 | 4 – 17 | 14 | — | 1.0 |
| ALM 40 | 40 | 0.09 – 0.37 | 5 – 100 | 10 – 45 | 18 | — | 2.3 |
| ALM 50 | 50 | 0.12 – 0.75 | 5 – 100 | 18 – 84 | 25 | 20 | 3.5 |
| ALM 63 | 63 | 0.18 – 1.5 | 5 – 100 | 32 – 160 | 25 | 25 | 6.2 |
| ALM 75 | 75 | 0.25 – 3.0 | 5 – 100 | 60 – 300 | 28 | 28 | 9.0 |
| ALM 90 | 90 | 0.37 – 4.0 | 5 – 80 | 100 – 480 | 35 | 35 | 13 |
| ALM 110 | 110 | 0.55 – 7.5 | 5 – 80 | 180 – 820 | 42 | 42 | 21 |
| ALM 130 | 130 | 0.75 – 11 | 5 – 80 | 260 – 1,100 | 45 | 45 | 32 |
| ALM 150 | 150 | 1.1 – 18.5 | 5 – 60 | 380 – 1,550 | 50 | 50 | 48 |
Extended Ratios with Double-Stage Combinations
Where a single ALM stage cannot reach the required output speed, two units combine as an ALM+ALM double-stage set for total ratios up to 3600:1 — ideal for slow-turning agitators, dosing systems, and indexing drives. Torque values in the table apply at 1440 rpm nominal / 1400 rpm input with service factor 1.0; contact our engineering team for selection at other speeds and duty cycles.
Industry Solutions
ALM Gearbox Applications
Compact, universally mountable drives for light and medium-duty machinery across industries.
Packaging & Automation
Film advance drives, indexing conveyors, labellers, and case packers. The compact ALM footprint fits inside machine frames, and the universal mounting simplifies drive layout on multi-axis packaging lines.
Conveyor Drives
Belt and roller conveyors in light and medium duty. Hollow-bore shaft mounting lets the reducer hang directly on the drive shaft with a torque arm — no couplings, no base plate, minimal installation time.
Food & Beverage Machinery
Fillers, mixers, and process equipment where the powder-coated aluminium housing resists corrosion in humid washdown-adjacent environments and keeps drive weight low on stainless frames.
Agitators & Dosing
Slow-speed stirrers, chemical dosing systems, and small mixers. Double-stage ALM+ALM combinations deliver very high ratios for precise, slow output speeds from standard 1440 rpm motors.
Material Handling
Turntables, small hoists, and gate drives. Self-locking worm behaviour at higher ratios holds position when power is removed, and the sealed IP55 housing shrugs off dust in warehouse environments.
OEM Machine Building
Textile machines, printing equipment, and special-purpose machinery. Standard IEC motor input flanges and ten interchangeable sizes make the ALM series a drop-in drive module for OEM designs.
Drives & Controls
Complete the Drive Chain
An ALM gearbox rarely works alone. We supply the motor, the VFD, and the starter or control panel — sized together with the reducer so nothing is over- or under-specified.
Budgetary offer — ALM Worm Gearboxes
Tell us the duty and we’ll send you a number
Power, input speed, and either the ratio or the output speed you need are usually enough to start. Our engineers reply on the same working day.
Have a nameplate photo, a drawing, or the old unit in front of you? Send it on WhatsApp — that is the fastest route to a number.
Prefer to talk? +91 98203 83719 or +91 98205 18093.