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WPWA Universal Speed Worm Gear Reducer — Multi-Directional Output for Chemical Vessels, Agricultural Equipment & Versatile Machine Layouts
When machine design demands that a gearbox deliver output in a direction that standard models cannot accommodate without right-angle adapter boxes or complex coupling arrangements, the WPWA universal speed worm gear reducer provides the direct solution. Building on the WPW universal flanged-base platform, the WPWA adds additional output shaft direction positions (up to five configurable orientations including vertical and horizontal), allowing the output shaft to be directed precisely where the driven equipment requires it.
The WPWA’s extended output shaft (LL dimension significantly longer than WPW standard), combined with its M, N, E, F, G housing body dimensions, provides the clearance and structural support needed for diverse driven equipment connections — including vessel agitator heads, agricultural auger shafts, and elevated machine spindles. Available in 12 sizes (40–250 mm), ratios 1/5–1/60. เกี่ยวกับเอเวอร์พาวเวอร์ | Request a Layout Review
Technical Specifications
WPWA shares base dimensions with WPWS (shared specification drawing). M, N = housing body dimensions; E, F, G = output shaft position geometry; LL = extended output shaft length. Reference input speed 1500 r/min. All dimensions in mm.
| Size | Ratio | เอ | AB | B | BB | AC | BC | CC | HL | LL | H | M | N | E | F | G | Z | HS | U | T×V | LS | S | W×Y | Wt(kg) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 40 | 1/5–1/60 | 143 | 87 | 114 | 74 | 95 | 61 | 40 | 45 | 60 | 135 | 100 | 130 | 80 | 110 | 10 | 10 | 25 | 12 | 4×2.5 | 28 | 14 | 5×3 | 4.5 | |
| 50 | 175 | 108 | 150 | 97 | 111 | 68 | 60 | 80 | 93 | 195 | 130 | 150 | 100 | 105 | 120 | 18 | 12 | 40 | 15 | 5×3 | 50 | 22 | 7×4 | 7.5 | |
| 60 | 198 | 120 | 168 | 112 | 127 | 76 | 60 | 80 | 93 | 195 | 130 | 150 | 100 | 105 | 120 | 18 | 12 | 40 | 15 | 5×3 | 50 | 22 | 7×4 | 11.5 | |
| 70 | 231 | 140 | 194 | 131 | 152 | 86 | 70 | 73 | 108 | 233 | 150 | 190 | 115 | 150 | 18 | 15 | 50 | 18 | 5×3 | 60 | 28 | 7×4 | 15.5 | ||
| 80 | 261 | 160 | 214 | 142 | 169 | 102 | 80 | 83 | 123 | 268 | 170 | 220 | 135 | 180 | 18 | 15 | 50 | 22 | 7×4 | 65 | 32 | 10×4.5 | 24 | ||
| 100 | 322 | 190 | 254 | 169 | 216 | 117 | 100 | 100 | 150 | 330 | 190 | 270 | 155 | 220 | 20 | 15 | 50 | 25 | 7×4 | 75 | 38 | 10×4.5 | 39 | ||
| 120 | 371 | 219 | 282 | 190 | 256 | 124 | 120 | 120 | 180 | 395 | 230 | 320 | 180 | 260 | 25 | 18 | 65 | 30 | 7×4 | 85 | 45 | 12×4.5 | 57 | ||
| 135 | 422 | 249 | 317 | 210 | 296 | 147 | 135 | 135 | 215 | 450 | 250 | 350 | 200 | 290 | 30 | 18 | 75 | 35 | 10×4.5 | 95 | 55 | 16×6 | 85 | ||
| 155 | 497 | 295 | 382 | 252 | 345 | 185 | 155 | 135 | 235 | 493 | 280 | 380 | 220 | 320 | 32 | 21 | 85 | 40 | 12×5 | 110 | 60 | 18×7 | 110 | ||
| 175 | 534 | 314 | 373 | 255 | 374 | 192 | 175 | 160 | 260 | 558 | 310 | 410 | 250 | 350 | 37 | 21 | 85 | 45 | 14×5.5 | 110 | 65 | 18×7 | 152 | ||
| 200 | 580 | 342 | 456 | 319 | 412 | 230 | 200 | 175 | 290 | 620 | 355 | 445 | 290 | 390 | 45 | 24 | 95 | 50 | 14×5.5 | 125 | 70 | 20×7.5 | 216 | ||
| 250 | 705 | 420 | 552 | 385 | 500 | 285 | 250 | 200 | 350 | 750 | 460 | 560 | 380 | 480 | 50 | 28 | 110 | 60 | 18×7 | 155 | 90 | 25×9 | 350 |
* Shared specification drawing with WPWS. M, N = housing body width/depth dimensions; E, F, G = output shaft extension reference points; LL = total output shaft span. HL = housing height. All oil fill positions A–E documented and supplied with each unit.
Product Structure — Extended Multi-Direction Output Design
The WPWA housing extends the WPW flanged-base concept with additional housing body length (LL dimension) and multiple shaft-direction preparation positions, providing structural support for output shafts in vertical, horizontal, and intermediate angle orientations. The additional housing body dimensions (M, N, E, F, G) reflect this extended geometry while maintaining the same precision worm gear internals.
| Output Directions | Multiple positions A–E; vertical and horizontal included |
| Output Shaft | Extended length (LL); solid shaft with keyway |
| Base | Integral flanged base with 4 anchor bolt positions |
| Oil System | Multi-face ports; oil documentation for all standard positions |
| Housing | FC25 cast iron; extended body vs standard WPW |
| Gear Pair | 20CrMnTi worm (≥58 HRC) + ZCuSn10Pb1 bronze wheel |
✅ Key Features & Benefits
Output Shaft to Any Direction — Without Adapter Boxes
The WPWA provides standard A–E shaft-direction positions directly from the housing — no right-angle adapter boxes, no additional gear sets, no extra alignment interfaces. This simplifies the machine structure and eliminates the intermediate components that would otherwise be needed to redirect a standard gearbox output to an off-horizontal angle. Keywords: multi-direction universal worm gear reducer, vertical output universal worm gearbox.
Extended Output Shaft for Long-Reach Applications
The WPWA LL dimension (output shaft span) is significantly longer than the standard WPW, accommodating agitator paddle connections on tall vessels, elevated machine spindle connections, and agricultural equipment shaft connections where the gearbox must sit above or beside the driven shaft attachment point.
Universal Flanged-Base for Any Machine Structure
The integral flanged base with four precision-flat anchor faces allows the WPWA to be bolted to machine side plates, vessel top flanges, agricultural equipment frames, and structural steelwork in any orientation — with correct oil lubrication confirmed for each position.
Self-Locking for Agricultural & Elevating Equipment
At ratios of 1/30 and above, the WPWA self-locks under static conditions — preventing auger back-drive in agricultural equipment, resisting gravity reversal on elevated conveyors, and holding agitator position when the motor is de-energised. This passive safety feature reduces the need for separate load-holding brakes in many applications.
Quiet Precision Drive for Food & Process Industry
Both gear components are ground to ISO 1328 Grade 7 tolerances, delivering smooth, uniform rotation (≤72 dB(A) at rated load) suitable for food processing vessels, brewery agitators, and process chemical equipment where gear-induced vibration in the fluid must be minimised.
12 Sizes Cover Full Machine Range
Twelve sizes (40–250 mm) with output torques from 17 Nm (size 40, ratio 1/5) to 2,371 Nm (size 250, ratio 1/60) cover agricultural, food processing, and industrial machine drives from the smallest auger feeder to the largest mixing vessel.
การประยุกต์ใช้ในอุตสาหกรรม
The WPWA is specified wherever machine layout requires output shaft direction flexibility in combination with the universal flanged-base mounting system:
Agricultural Auger & Conveyor DrivesGrain auger drives, seed conveyor elevation drives, and crop processing conveyor systems where the WPWA output can be directed to the auger shaft angle without additional right-angle gear boxes.
Chemical Vessel AgitatorsSide-entry and top-entry chemical vessel agitator drives where the WPWA provides output directly to the agitator shaft at the required angle without intermediate coupling assemblies.
Brewery & Food ProcessingBrewing vessel agitator drives, sauce batch cooker drives, and food ingredient mixing systems where the multi-direction output accommodates varied vessel and machine configurations.
Construction & Quarry EquipmentGravel elevator drives, quarry conveyor inclined drives, and construction material elevator systems where off-horizontal mounting angles are dictated by the equipment structure.
Textile & Paper MachineryTextile machine auxiliary shaft drives, paper handling equipment elevation drives, and industrial roll-to-roll system drives requiring precise output shaft direction positioning.
General Machinery OEMAny OEM machine builder requiring the same gearbox in multiple machine variants with different output shaft directions — reducing design effort and spare parts complexity across the product range.
Quality Control & Certification
ISO 9001:2015 & CE
Full ISO 9001:2015 QMS. CE Declaration of Conformity per shipment. Output shaft run-out verified (≤0.05 mm TIR) for all WPWA shaft-direction configurations. Multi-orientation oil documentation supplied with each unit.
Run Test & Shaft Verification
Each WPWA undergoes run test (noise ≤72 dB(A), seal integrity, torque ±5% of rated) plus output shaft run-out check at the extended shaft tip — verifying that the longer LL shaft extension maintains geometric accuracy at the driven equipment connection point.
Material Standards
Housing: FC25 cast iron (≥250 MPa). Worm: 20CrMnTi (≥58 HRC). Wheel: ZCuSn10Pb1 tin-bronze. Food-grade and agricultural sector documentation available. SGS/BV inspection on request.
Why Choose Ever-power for WPWA Gearboxes
We supply WPWA multi-direction universal worm gearboxes to agricultural equipment OEMs, chemical vessel manufacturers, and brewery equipment builders in France, Canada, Saudi Arabia, Australia, and over 60 countries. Our extended shaft tip run-out verification — checking geometric accuracy at the driven equipment connection point, not just at the bearing face — is the quality assurance detail that agricultural and agitator customers rely on for consistent mechanical performance in field conditions.
- ✅ Extended shaft tip run-out check — ≤0.05 mm TIR at driven equipment connection
- ✅ Multi-orientation oil documentation — 5 positions supplied with each unit
- ✅ Agricultural & food sector expertise — we understand field installation requirements
- ✅ Custom shaft extensions for long-reach agitator and auger applications
- ✅ 20+ years export record — France, Canada, Saudi Arabia, Australia and beyond
⭐ Customer Reviews
“We use WPWA gearboxes on our grain auger elevator drives. The multi-direction output positions allow us to direct the auger shaft at the correct angle for each elevator configuration without adding right-angle gear units. The extended shaft length provides the clearance we need above the grain bin structures. Reliable performance in dusty outdoor conditions.”
James P., Agricultural Equipment Engineer
Agricultural Equipment OEM, Queensland, Australia
“We integrate WPWA-100 and WPWA-120 units into our chemical reactor vessel agitator drives. The multi-direction output accommodates the varied shaft angles of our vessel range, and the flanged base mounts directly to our vessel support structure. The gear precision provides the smooth, low-vibration output that our process chemistry demands.”
Sophie D., Process Engineer
Chemical Equipment Manufacturer, Lyon, France
“WPWA gearboxes on our fermentation vessel agitator drives. The ability to configure the output shaft direction for each vessel mounting arrangement without changing gearbox models has simplified our product range significantly. Good quality from Ever-power and reliable supply across multiple brewery equipment projects.”
David C., Plant Engineer
Brewery Equipment Supplier, Ontario, Canada
“We use WPWA units on various food production line drives in our facility. The versatility of the multi-direction output positions means we can use the same gearbox type across different machine positions on our production floor. Good quality, the shaft run-out is consistently within spec. Satisfied with the product.”
Khalid R., Technical Supervisor
Food Processing Plant, Riyadh, Saudi Arabia
❓ Frequently Asked Questions
What is the difference between WPWA and WPW?
The WPW has a standard single output shaft with five mounting positions (A–E). The WPWA has an extended output shaft and additional housing body geometry (M, N, E, F, G dimensions) that supports a wider range of output shaft direction configurations — including vertical upward, vertical downward, and various inclined positions that the WPW standard shaft cannot accommodate directly. The flanged base is identical between WPWA and WPW; the difference is in the output shaft arrangement.
How does the WPWA output shaft direction differ from the WPW standard?
The WPW provides five standard shaft-direction positions (A–E) from a single housing orientation. The WPWA provides the same five positions PLUS additional flexibility for off-axis shaft connections through its extended housing geometry. For applications where the driven equipment shaft is at a specific non-standard angle, contact us with your required output shaft angle — we will specify the correct WPWA position configuration.
Is the WPWA suitable for outdoor agricultural environments?
Yes — the standard WPWA with FC25 cast iron housing and NBR seals is suitable for covered outdoor environments. For exposed outdoor agricultural applications subject to rain, dust, and temperature extremes, we recommend requesting the optional anti-corrosion coating and sealed breather. For direct grain dust environments, a dust protection sleeve on the input shaft is also recommended.
What is the maximum output torque available from the WPWA?
At 1500 r/min input, size 250 at ratio 1/60 delivers approximately 2,371 Nm — the same as the WPW equivalent, since the gear pair is identical. Output torque depends only on input power and gear ratio, not on the shaft-direction configuration. Contact our engineers for a selection calculation for your specific input power and required output speed.
Can the WPWA be used as a direct drop-in replacement for the WPW?
The WPWA has the same flanged-base dimensions (A, AB, B, BB, AC, BC, CC) as the WPW, so the mounting footprint is compatible. However, the WPWA housing body is longer (higher LL dimension) due to the extended output shaft arrangement. Verify that the available installation clearance accommodates the WPWA overall height (HL) before specifying as a WPW replacement.
Output in Any Direction — Get WPWA Quote Today
Whether your vessel agitator needs a specific output angle or your agricultural equipment requires a non-standard shaft direction, the WPWA delivers. Our engineers will review your layout and specify the correct shaft-direction position.
