توضیحات
WPWDKA Flange-Mounted Universal Hollow Shaft Worm Gear Reducer — Three Interfaces, Zero Couplings, Maximum Output Direction Flexibility
The WPWDKA is the most feature-complete standard product in the WPW motor-direct hollow shaft family — integrating IEC motor flange (no input coupling), H7 hollow output bore (no output coupling), extended multi-direction output shaft geometry, AND the WPW universal flanged base. Four features in one casting: motor-direct input, coupling-free hollow bore output, extended multi-direction output reach, and multi-orientation universal base.
Where the WPWDK delivers zero-coupling simplicity in a standard compact housing, the WPWDKA extends the output shaft (LL, M, N, E, F, G dimensions) to accommodate the varied-angle agitator heads, agricultural shaft connections, and off-axis driven equipment that the WPWDK standard housing cannot reach. Motors 0.12–15 kW, bore 18–110 mm, ratios 1/5–1/60. About Ever-power | Request a Configuration Review
Technical Specifications
Shared spec drawing with WPWDKS. Motor flange: LA/LB/LC/LE/LZ per IEC 60034-7. Extended body: LL, M, N, E, F, G. Hollow bore: S (H7); W×Y. Base: AC, BC. Reference speed 1500 r/min. All dimensions mm.
| Size | Power(kW) | Ratio | A | AB | B | AC | BC | CC | HL | LL | H | M | N | E | F | G | Z | LA | LB | LC | LE | LZ | Q | U | T×V | S(bore) | W×Y | Wt(kg) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 40 | 0.12 | 1/5–1/60 | 135 | 75 | 85 | 95 | 61 | 40 | 45 | 60 | 135 | 100 | 130 | 80 | 110 | 10 | 10 | 115 | 95 | 140 | 4 | M8 | 31 | 11 | 4×12.8 | 18 | 6×22.8 | 5 | |
| 50 | 0.18 | 151 | 83 | 105 | 111 | 68 | 60 | 80 | 93 | 195 | 130 | 150 | 100 | 105 | 120 | 18 | 12 | 115 | 95 | 140 | 4 | M8 | 31 | 11 | 4×12.8 | 20 | 6×22.8 | 8 | |
| 60 | 0.37 | 167 | 91 | 110 | 127 | 76 | 60 | 80 | 93 | 195 | 130 | 150 | 100 | 105 | 120 | 18 | 12 | 130 | 110 | 160 | 4 | M8 | 33 | 14 | 5×16.3 | 25 | 8×28.3 | 12.5 | |
| 70 | 0.37/0.75 | 200/202 | 109/111 | 130 | 152 | 86 | 70 | 73 | 108 | 233 | 150 | 190 | 115 | 150 | 18 | 15 | 130/165 | 110/130 | 160/200 | 4 | M8/M10 | 40/42 | 14/19 | 5×16.3/6×21.8 | 30 | 8×33.3 | 17 | ||
| 80 | 0.75/1.5 | 225 | 125 | 150 | 169 | 102 | 80 | 83 | 123 | 268 | 170 | 220 | 135 | 180 | 18 | 15 | 165 | 130 | 200 | 4.5 | M10 | 48/52 | 19/24 | 6×21.8/8×27.3 | 35 | 10×38.3 | 26 | ||
| 100 | 1.5 | 280 | 148 | 160 | 216 | 117 | 100 | 100 | 150 | 330 | 190 | 270 | 155 | 220 | 20 | 15 | 165 | 130 | 200 | 4.5 | M10 | 52 | 24 | 8×27.3 | 40 | 12×43.3 | 41.5 | ||
| 120 | 2.2/3.0 | 333 | 181 | 175 | 256 | 124 | 120 | 120 | 180 | 395 | 230 | 320 | 180 | 260 | 25 | 18 | 215 | 180 | 250 | 5 | M12 | 63 | 28 | 8×31.3 | 45 | 14×48.8 | 60 | ||
| 135 | 3.0/4.0 | 375 | 202 | 210 | 296 | 147 | 135 | 135 | 215 | 450 | 250 | 350 | 200 | 290 | 30 | 18 | 215 | 180 | 250 | 5 | M12 | 63 | 28 | 8×31.3 | 60 | 18×64.4 | 90 | ||
| 155 | 5.5 | 448 | 247 | 256 | 345 | 185 | 155 | 135 | 235 | 493 | 280 | 380 | 220 | 320 | 32 | 21 | 265 | 230 | 300 | 5 | M12 | 83 | 38 | 10×41.3 | 70 | 20×74.9 | 118 | ||
| 175 | 7.5 | 481 | 262 | 282 | 374 | 192 | 175 | 160 | 260 | 558 | 310 | 410 | 250 | 350 | 37 | 21 | 265 | 230 | 300 | 5 | M12 | 83 | 38 | 10×41.3 | 80 | 22×85.4 | 167 | ||
| 200 | 11.0 | 543 | 285 | 320 | 412 | 230 | 200 | 175 | 290 | 620 | 355 | 445 | 290 | 390 | 45 | 24 | 300 | 250 | 350 | 6 | M16 | 114 | 42 | 12×45.3 | 85 | 22×90.4 | 237 | ||
| 250 | 11.0/15.0 | 615 | 330 | 400 | 500 | 285 | 250 | 200 | 350 | 750 | 460 | 560 | 380 | 480 | 50 | 28 | 300 | 250 | 350 | 6 | M16 | 114 | 42 | 12×45.3 | 110 | 28×116.4 | 395 |
* Shared drawing with WPWDKS. HL = height including IEC flange. LL, M, N, E, F, G = extended body geometry for multi-direction output. S = hollow bore H7; driven shaft to h6/js6. Multiple motor powers per size indicate motor range options.
Product Structure — Four Features in One Casting
The WPWDKA is the integration of WPWDK (motor-direct + hollow bore) with WPWDA (extended multi-direction output). IEC flange at the motor end; extended housing body (LL, M, N, E, F, G) supporting the hollow bore output at varied angles; WPW flanged base for universal mounting. The result is the maximum-flexibility motor-direct hollow shaft product in the WPW series.
| Feature 1 | IEC motor flange — motor shaft direct, no input coupling |
| Feature 2 | H7 hollow bore + keyway — driven shaft direct, no output coupling |
| Feature 3 | Extended housing body (LL) — multi-direction output shaft reach |
| Feature 4 | Universal flanged base — multi-orientation mounting (A–F) |
| Motor Range | 0.12 kW (size 40) to 15 kW (size 250) |
| Self-Locking | At ratios ≥1/30 in all mounting orientations |
✅ Key Features & Benefits
Maximum Feature Integration in the WPW DK Series
The WPWDKA is the only WPW product simultaneously providing: no input coupling (IEC flange) + no output coupling (hollow bore) + extended multi-direction output reach (LL body) + multi-orientation base (universal flange). For OEM machine builders who need all four capabilities in one product number, the WPWDKA is the single answer. Keywords: motor-direct hollow shaft multi-direction universal worm reducer, four-feature zero-coupling worm gearbox.
Extended Output for Long-Reach Agitator & Shaft Connections
The extended LL dimension and E, F, G output geometry provide the structural reach needed to connect to deep vessel agitators, tall agricultural auger heads, and elevated machine shafts at varied angles — where the compact WPWDK standard housing cannot span the required distance to the driven shaft connection point.
15-Minute Motor Swap in Any Installation
IEC flange motor access is consistent regardless of how the hollow bore output is positioned — motors can be swapped in under 15 minutes even in installations where the output shaft connection is at a complex angle.
One Product — All Motor-Direct Hollow Shaft Scenarios
By combining all four features, the WPWDKA eliminates the need to select between WPWDK (no extended reach), WPWDKO (multi-direction but no IEC flange+hollow bore), or WPWDA (extended reach but solid shaft) for complex motor-direct hollow shaft multi-direction applications.
Precision Hollow Bore for Agitator Shaft Service
H7 hollow bore ground to precision (≤0.05 mm concentricity TIR) ensures smooth, vibration-free engagement of agitator shafts — eliminating bore eccentricity as a source of agitator vibration in chemical, food, and pharmaceutical vessel drives.
Self-Locking Load Holding in Any Orientation
At ratios ≥1/30, the WPWDKA self-locks in all orientations, including the extended-output configurations — providing passive load holding for agitators and elevated equipment regardless of output shaft direction.
Industry Applications
The WPWDKA is specified for the most demanding motor-direct hollow shaft applications requiring extended multi-direction output:
Chemical Vessel Long-Reach AgitatorsDeep vessel top-entry hollow shaft agitator drives where both IEC motor-direct convenience and extended hollow bore reach to the agitator stub shaft are simultaneously required.
Agricultural Long-Reach Hollow DrivesAgricultural long-reach auger elevator hollow shaft drives and tall-mounted grain handling equipment drives where motor-direct convenience, hollow bore engagement, and output shaft reach are all needed.
Large Brewery & Food Vessel DrivesLarge fermenter top-entry hollow shaft agitator motor-direct drives and tall food mixing vessel drives requiring motor-direct IEC input and extended hollow bore reach to the agitator shaft.
Pharmaceutical Vessel & Blender DrivesGMP pharmaceutical vessel agitator drives and blending equipment hollow shaft drives requiring IEC motor-direct operation with hollow bore direct shaft engagement at varied agitator angles.
Elevated Machine Hollow Shaft DrivesElevated conveyor head hollow shaft drives with IEC motor mounting, machine tool auxiliary hollow shaft drives with extended reach, and overhead machine drives with all four WPWDKA features required simultaneously.
Maximum-Specification OEM DrivesOEM machine builders who want the highest-specification motor-direct hollow shaft product for their premium machines — providing all features in one product number for their most demanding drive applications.
Quality Control & Certification
ISO 9001:2015 & CE
Full ISO 9001:2015 QMS. CE Declaration of Conformity. IEC flange CMM, bore H7 plug gauge, and extended shaft tip run-out (≤0.05 mm TIR) — three interface checks. Food-grade lubricant factory-fill (NSF H1) on request.
Triple Interface + Run Test
Each WPWDKA undergoes: (1) IEC flange concentricity CMM (≤0.05 mm TIR); (2) bore H7 plug gauge + concentricity CMM; (3) extended shaft tip run-out check (≤0.05 mm TIR); (4) 45-min run test — noise ≤72 dB(A), seal, torque ±5%. Three interface dimensions verified per unit.
Material Standards
Housing: FC25 cast iron. Worm: 20CrMnTi (≥58 HRC). Wheel: ZCuSn10Pb1 tin-bronze. Food-grade lubricant, custom shaft extensions, and GMP documentation packages on request.
Why Choose Ever-power for WPWDKA Gearboxes
We supply WPWDKA motor-direct hollow shaft multi-direction universal worm gearboxes to chemical equipment OEMs, agricultural machinery builders, and pharmaceutical vessel equipment manufacturers in Germany, Australia, Mexico, Singapore, and over 60 countries. Our triple interface verification — IEC flange CMM, bore H7, and extended shaft tip run-out, all checked per unit — confirms that every WPWDKA delivers motor fit, output shaft fit, and geometric output accuracy from the same unit.
- ✅ Triple interface CMM verification — flange + bore + shaft tip, every unit
- ✅ Custom shaft extensions for deep vessel agitator applications
- ✅ Food-grade lubricant option for food/pharma vessel applications
- ✅ GMP documentation packages for pharmaceutical equipment qualification
- ✅ 20+ years export record — Germany, Australia, Mexico, Singapore and beyond
⭐ Customer Reviews
“We use WPWDKA on our deep chemical reactor vessel agitator drives. The four-feature combination is unique — IEC motor-direct convenience, hollow bore direct shaft engagement, extended output reach to the agitator stub at depth, and universal base for our varied vessel frame configurations. The triple interface verification report is an excellent quality document for our equipment files.”
Nathan C., Process Engineer
Chemical Equipment OEM, South Australia
“We integrate WPWDKA into our long-reach hollow shaft auger elevator drives. The IEC flange motor-direct input, the hollow bore direct auger shaft engagement, and the extended output shaft reach are exactly the three features our application requires — all in one product. The universal base handles all our machine configurations.”
Florian B., Machine Design Engineer
Agricultural Equipment OEM, Bayern, Germany
“WPWDKA for pharmaceutical vessel hollow shaft agitator drives. The IEC flange enables clean motor changes for GMP maintenance procedures, the hollow bore eliminates the coupling from our vessel top structure, and the extended output positions the bore at the correct depth for our agitator shaft engagement. GMP documentation pack satisfies our qualification requirements.”
David T., Applications Engineer
Pharmaceutical Equipment, Mexico City, Mexico
“We supply WPWDKA to food and pharmaceutical equipment builders in Southeast Asia. The four-feature combination addresses their most complex motor-direct hollow shaft requirements. Good quality and consistent interface dimensions. Lead time for non-standard bore sizes is slightly longer — plan ahead for OEM projects.”
Victor L., Engineering Manager
Industrial Equipment Distributor, Singapore
❓ Frequently Asked Questions
What is the difference between WPWDKA and WPWDK?
The WPWDK is a compact unit with IEC flange + hollow bore in a standard-length housing (no extended output shaft). The WPWDKA adds an extended housing body (LL, M, N, E, F, G dimensions) that provides extended output shaft reach and multi-direction output positioning. Choose WPWDK for standard compact installations; choose WPWDKA when the driven shaft connection is at a non-standard reach or angle from the gearbox body.
What is the difference between WPWDKA and WPWDKS?
The WPWDKA and WPWDKS share identical dimensions (same specification drawing) and both combine IEC motor flange + hollow bore + extended multi-direction output. The WPWDKS adds cast-integral cooling fins that reduce oil temperature ~15°C for continuous heavy-duty service in hot environments. Choose WPWDKA for standard duty; choose WPWDKS for continuous duty in hot industrial environments where thermal stability is a concern.
Can custom shaft extensions be provided for deep vessel applications?
Yes — the standard LL dimension is specified in the table. For deep vessel agitator applications requiring the output shaft bore to position at a greater depth than the standard LL provides, custom extended housing bodies are available for OEM orders. Contact us with your required output bore position depth for availability and pricing.
Is the WPWDKA suitable for ATEX applications?
The WPWDKA is not an ATEX-certified product as standard. For use in ATEX zones, the connected motor must be ATEX rated and specific installation requirements (grounding, shaft sealing) must be observed per your zone classification. Contact us for guidance on WPWDKA installation in ATEX environments.
What is the maximum output torque of the WPWDKA?
At 1500 r/min input, size 250 with 15 kW motor at ratio 1/60 delivers approximately 3,025 Nm — the same as the WPWDK equivalent since the gear pair is identical. The extended housing body does not affect gear mesh geometry or torque capacity.
Four Features, One Product — Get WPWDKA Quote
Motor-direct + hollow bore + extended reach + universal base — the WPWDKA is for applications that need all four. Our engineers will configure the correct output shaft direction and extended dimension for your agitator or hollow shaft application.
