Description
WPWT Universal Worm Gear Reducer — Tilted Base Mount for Inclined Conveyors, Quarry Equipment & Non-Standard Machine Structures
Standard worm gearboxes assume horizontal installation. But quarry conveyors, inclined ore feeders, and tiered production line conveyors routinely require drives mounted at angles between 10° and 45° to horizontal — angles where a conventional foot-mount gearbox transmits incorrect loads to its mounting bolts and provides inadequate oil immersion for the gear and bearings. The WPWT universal tilted-base worm gear reducer addresses this directly with a housing geometry and mounting base engineered specifically for inclined and tilted installation configurations.
The WPWT LL (housing length) and E, E₁, E₂ shaft geometry dimensions reflect the tilted mounting arrangement — with oil ports positioned for correct lubrication in inclined service. Available in 12 sizes (40–250 mm), ratios 1/5–1/60, with five shaft-direction positions (A–E) for flexible inclined drive integration. எவர்-பவர் பற்றி | Request Inclined Drive Consultation
Technical Specifications
WPWT and WPWV share the specification drawing. AB, BB = housing width/depth; CC = housing face dimension; LL = housing length; E, E₁, E₂ = output shaft geometry. Reference speed 1500 r/min. All dimensions in mm.
| Size | Ratio | AB | BB | CC | LL | M | N | E | E₁ | E₂ | G | Z | HS | U | T×V | LS | S | W×Y | Wt(kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 40 | 1/5–1/60 | 87 | 74 | 40 | 63 | 90 | 187 | 70 | 72 | 97 | 12 | 10 | 25 | 12 | 4×2.5 | 28 | 14 | 5×3 | 5 |
| 50 | 108 | 97 | 50 | 70 | 120 | 226 | 95 | 90 | 110 | 14 | 12 | 30 | 12 | 4×2.5 | 40 | 17 | 5×3 | 8 | |
| 60 | 120 | 112 | 60 | 80 | 130 | 257 | 105 | 102 | 129 | 15 | 12 | 40 | 15 | 5×3 | 50 | 22 | 7×4 | 11 | |
| 70 | 140 | 131 | 70 | 95 | 150 | 305 | 115 | 120 | 155 | 20 | 15 | 50 | 18 | 5×3 | 60 | 28 | 7×4 | 15.5 | |
| 80 | 160 | 142 | 80 | 105 | 170 | 350 | 135 | 140 | 180 | 20 | 15 | 50 | 22 | 7×4 | 65 | 32 | 10×4.5 | 24 | |
| 100 | 190 | 169 | 100 | 135 | 190 | 410 | 155 | 165 | 215 | 22 | 15 | 50 | 25 | 7×4 | 75 | 38 | 10×4.5 | 38 | |
| 120 | 219 | 190 | 120 | 160 | 230 | 494 | 180 | 195 | 255 | 25 | 18 | 65 | 30 | 7×4 | 85 | 45 | 12×4.5 | 56 | |
| 135 | 249 | 210 | 135 | 185 | 250 | 559 | 200 | 230 | 285 | 30 | 18 | 75 | 35 | 10×4.5 | 95 | 55 | 16×6 | 84 | |
| 155 | 295 | 252 | 155 | 220 | 275 | 605 | 220 | 250 | 305 | 35 | 21 | 85 | 40 | 12×5 | 110 | 60 | 18×7 | 129 | |
| 175 | 314 | 255 | 175 | 240 | 310 | 675 | 250 | 273 | 348 | 40 | 21 | 85 | 45 | 14×5.5 | 110 | 65 | 18×7 | 157 | |
| 200 | 342 | 319 | 200 | 280 | 360 | 749 | 290 | 305 | 390 | 40 | 24 | 95 | 50 | 14×5.5 | 125 | 70 | 20×7.5 | 224 | |
| 250 | 420 | 385 | 250 | 315 | 460 | 920 | 380 | 375 | 475 | 45 | 28 | 110 | 60 | 18×7 | 155 | 90 | 25×9 | 374 |
* Shared specification drawing with WPWV. LL = housing length dimension for the tilted arrangement. E, E₁, E₂ = output shaft extension geometry. Shaft directions A–E (5 positions). Position-specific oil fill instructions supplied with each unit.
Product Structure — Tilted Housing with Inclined Service Design
The WPWT housing is configured for tilted and inclined mounting, with an elongated body (LL dimension) and output shaft geometry (E, E₁, E₂) suited to inclined conveyor and quarry equipment drive connections. Oil ports are positioned to maintain correct gear mesh and bearing lubrication in the inclined operating position, and the mounting face preparations accommodate inclined structure bolt-down connections.
| Configuration | Tilted/inclined mounting; elongated LL housing for inclined shaft geometry |
| Oil System | Ports positioned for correct lubrication in inclined service position |
| Shaft Positions | 5 configurable positions (A–E) for inclined machine geometries |
| Housing | FC25 cast iron; elongated body for inclined mounting clearance |
| Self-Locking | At ratios ≥1/30 — prevents back-sliding on inclined conveyors |
| Gear Pair | 20CrMnTi worm (≥58 HRC) + ZCuSn10Pb1 bronze wheel |
✅ Key Features & Benefits
Engineered for Inclined Service — Not Adapted
The WPWT is not a standard horizontal gearbox tilted at an angle — the housing geometry, oil port positions, and shaft arrangement are configured for inclined service from the design stage. This means correct lubrication and correct bolt load distribution in the tilted mounting position, without the compromises of adapting a horizontal unit. Keywords: tilted-mount universal worm reducer, inclined conveyor worm gearbox.
Self-Locking Prevents Inclined Conveyor Rollback
At ratios of 1/30 and above, the WPWT self-locks under static conditions — preventing back-sliding of inclined conveyor loads when the motor is de-energised. For quarry, mining, and aggregate handling inclined conveyors, this passive safety feature eliminates the need for a separate mechanical backstop in many applications.
Correct Oil Level in Inclined Position
The WPWT oil ports are configured to establish correct oil immersion at the gear mesh and bearings when the unit is in its inclined operating position. Installing a horizontal gearbox at an incline without this configuration results in over-lubrication of the low end and under-lubrication of the high end — leading to churning losses and dry-running bearing wear respectively.
Five Shaft Positions for Inclined Machine Layouts
Five configurable shaft-direction positions (A–E) accommodate the varied inclined drive geometries of quarry conveyors, aggregate processing plants, and tiered production line drives where the input shaft angle relative to the mounting surface varies by application.
Compact vs Angle-Drive Alternatives
Using a WPWT in its native inclined orientation avoids adding a right-angle bevel adapter or a separate inclined-mounting bracket to a standard horizontal unit — reducing the total drive assembly weight, height, and mechanical complexity of inclined conveyor head drives.
12 Sizes for Full Inclined Drive Range
Twelve sizes covering output torques from 17 Nm to 2,371 Nm provide the complete range of inclined conveyor, quarry, and aggregate handling drive requirements in a single standardised tilted-mount product.
Industry Applications
The WPWT is specified wherever inclined and tilted mounting angles require a purpose-designed drive rather than an adapted standard unit:
Quarry & Aggregate ConveyorsInclined stone crusher feed conveyors, aggregate elevating belt drives, and quarry processing plant inclined conveyor head drives where mounting angles of 15–35° are standard.
Inclined Production Line ConveyorsTiered factory production line inclined conveyor drives, inclined parts feeding conveyor drives, and tiered assembly line transport system drives requiring drives at specific incline angles.
Grain & Crop ElevatorsGrain elevator leg drive systems, crop conveying inclined conveyor drives, and agricultural product handling inclined conveyor systems where the WPWT’s anti-rollback self-locking prevents material slide-back on motor stop.
Building Materials HandlingBrick, block, and tile factory inclined conveyor drives, concrete block production line elevating conveyor drives, and building materials transfer inclined system drives.
Construction Site EquipmentInclined debris conveyor drives, construction material elevating conveyor systems, and site equipment inclined transport drive systems where portable or semi-permanent inclined drive arrangements are required.
General Inclined Industrial DrivesAny general industrial application where a conveyor, feeder, or elevating mechanism requires a drive mounted at a specific incline angle that standard foot-mount or flanged-base gearboxes cannot accommodate correctly.
Quality Control & Certification
ISO 9001:2015 & CE
Full ISO 9001:2015 QMS. CE Declaration of Conformity. Inclined position oil fill verified before shipment. SGS/BV inspection available for mining and aggregate sector procurement documentation.
Inclined Position Verification
Each WPWT undergoes standard run test (noise ≤72 dB(A), seal integrity, torque ±5%) with oil fill levels verified for the primary rated inclined position. Inclined-position oil fill instruction sheet supplied with every unit, specifying correct port and level for each rated shaft-direction position.
Material Standards
Housing: FC25 cast iron (≥250 MPa). Worm: 20CrMnTi (≥58 HRC). Wheel: ZCuSn10Pb1 tin-bronze. Third-party inspection on request for quarry, mining, and aggregate industry compliance requirements.
Why Choose Ever-power for WPWT Gearboxes
We supply WPWT tilted-mount universal worm gearboxes to quarry equipment builders, aggregate processing machinery manufacturers, and general industrial conveyor OEMs in Poland, India, Canada, Australia, and over 60 countries. Our inclined position oil fill verification — confirming correct lubrication at the rated incline before shipment — ensures WPWT customers install units that will perform correctly in their actual operating orientation without adjustment.
- ✅ Inclined position oil fill verification — confirmed before shipment
- ✅ Inclined oil fill instruction sheet — supplied with every unit
- ✅ Quarry & aggregate sector supply expertise — we understand inclined drive requirements
- ✅ Custom incline angle consultation — advise on any mounting angle
- ✅ 20+ years export record — Poland, India, Canada, Australia and beyond
⭐ Customer Reviews
“We use WPWT on our inclined aggregate conveyor head drives at 25° inclination. The housing is correctly designed for this angle — the oil ports are in the right positions, the gear mesh is properly lubricated, and the self-locking prevents material rollback on motor stop. Previously we used adapted horizontal units and had constant oil level problems. WPWT solves this properly.”
Paul H., Drive Systems Engineer
Quarry Equipment Manufacturer, Queensland, Australia
“WPWT on our stone crusher inclined conveyor drives. The tilted housing configuration handles our 30° conveyor angle correctly from an oil lubrication perspective. The self-locking at our 1/40 ratio specification prevents material slide-back on emergency stop — a critical safety feature for our operators. Good quality from Ever-power.”
Marek K., Mechanical Engineer
Aggregate Processing Plant, Kraków, Poland
“We use WPWT for our inclined limestone conveyor drives at our quarry. The tilted design keeps the gear lubricated correctly even in our steep conveyor configuration. The anti-rollback self-locking is important for safety in our operation. Reliable supply and good quality from Ever-power.”
Suresh P., Plant Engineer
Quarry Operations, Rajasthan, India
“WPWT units on our inclined conveyor drives. The purpose-designed tilted housing works much better than adapted horizontal units we used before. Oil lubrication is correct, noise is low, and the dimensions are consistent batch to batch. One delivery timing query that was resolved quickly. Good product overall.”
Michael B., Equipment Engineer
Aggregate Plant, Ontario, Canada
❓ Frequently Asked Questions
What is the difference between WPWT and WPW?
The WPW is optimised for horizontal foot-mount service with multi-orientation capability. The WPWT has a housing geometry specifically configured for inclined and tilted mounting — with oil port positions, shaft arrangement, and housing length (LL) suited to inclined conveyor and quarry equipment drives. The WPWT should be selected when your installation angle is primarily inclined (10–45°) rather than horizontal.
At what maximum inclination angle can the WPWT be used?
The WPWT supports inclined mounting across its five rated shaft-direction positions. The specific maximum inclination depends on the shaft-direction position selected. Contact us with your required mounting angle and we will confirm the correct position specification and oil fill instructions for your angle.
Does the WPWT self-locking work reliably on steep inclines?
Yes — at ratios of 1/30 and above, the WPWT self-locks in any mounting orientation including steep inclines. The self-locking torque is a function of the gear lead angle and friction coefficient, both of which are independent of mounting angle. Note that synthetic lubricants (lower friction coefficient) may reduce self-locking reliability — use mineral ISO VG 320 oil if static load-holding is a critical requirement.
Can I use a WPW instead of a WPWT on an inclined conveyor?
A WPW can be mounted at inclined angles, but correct oil lubrication at inclined positions requires careful setup and position-specific oil fill guidance. The WPWT’s oil port arrangement is specifically designed for its primary inclined service orientation, making correct installation more straightforward and reliable. For continuous inclined service, WPWT is the engineered recommendation.
What is the WPWT housing length (LL) compared to the WPW?
The WPWT LL dimension (housing length) is typically 30–50% longer than the equivalent WPW size, reflecting the elongated housing geometry needed for the tilted arrangement. Check the LL value in the specification table for your required size before planning the installation clearance space.
Designed for Inclined Service — Get WPWT Quote Today
Stop adapting horizontal gearboxes for inclined drives. The WPWT is purpose-engineered for tilted service. Our engineers will confirm the correct position and oil fill configuration for your installation angle.
