{"id":1846,"date":"2026-05-26T08:56:49","date_gmt":"2026-05-26T08:56:49","guid":{"rendered":"https:\/\/chinawormgearbox.xyz\/product\/wpds-flange-mounted-single-speed-worm-gear-reducer-with-cooling-fins\/"},"modified":"2026-05-26T08:56:49","modified_gmt":"2026-05-26T08:56:49","slug":"wpds-flange-mounted-single-speed-worm-gear-reducer-with-cooling-fins","status":"publish","type":"product","link":"https:\/\/chinawormgearbox.xyz\/it\/product\/wpds-flange-mounted-single-speed-worm-gear-reducer-with-cooling-fins\/","title":{"rendered":"WPDS Flange-Mounted Single Speed Worm Gear Reducer with Cooling Fins"},"content":{"rendered":"
\n<\/p>\n
\n

WPDS Flange-Mounted Single Speed Worm Gear Reducer with Cooling Fins \u2014 Motor-Direct Drive with Superior Thermal Management<\/h1>\n

Motor-direct drives generate heat from two sources simultaneously: the motor and the gearbox. In high-duty-cycle applications \u2014 continuous process lines, chemical plant drives, multi-shift production \u2014 this combined thermal load can quickly push a standard flanged gearbox beyond its safe operating temperature. The WPDS motor-direct worm gear reducer<\/strong> addresses this challenge by combining the installation simplicity of an IEC flange-mount with the thermal performance of an integral cooling fin array.<\/p>\n

The WPDS delivers up to 15\u00b0C lower sustained operating temperature compared to the equivalent WPDA smooth-body unit \u2014 extending lubricant service life, protecting seals, and reducing the risk of overtemperature tripping in enclosed machine cabinets or hot plant rooms. Available in 12 frame sizes<\/strong> (40\u2013250 mm), motor powers from 0.12 to 15 kW, and ratios from 1\/5 to 1\/60. About Ever-power<\/a> | Request a Free Thermal Assessment<\/a><\/p>\n<\/section>\n

\n

Technical Specifications<\/h2>\n

WPDS shares the WPDA base footprint but with increased housing height (H) due to the integral fin array. Note the higher HL values vs WPDA. Reference input speed 1500 r\/min<\/strong>. All dimensions in mm.<\/p>\n

\"WPDS<\/div>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Size<\/th>\nPower(kW)<\/th>\nRatio<\/th>\nA<\/th>\nAB<\/th>\nBB<\/th>\nCC<\/th>\nH<\/th>\nHL<\/th>\nM<\/th>\nN<\/th>\nE<\/th>\nF<\/th>\nG<\/th>\nZ<\/th>\nLA<\/th>\nLB<\/th>\nLC<\/th>\nLE<\/th>\nLZ<\/th>\nQ<\/th>\nU<\/th>\nT\u00d7V<\/th>\nLS<\/th>\nS<\/th>\nW\u00d7Y<\/th>\nWt(kg)<\/th>\n<\/tr>\n<\/thead>\n
40<\/td>\n0.12<\/td>\n1\/5\u20131\/60<\/td>\n135<\/td>\n75<\/td>\n74<\/td>\n40<\/td>\n141<\/td>\n60<\/td>\n90<\/td>\n100<\/td>\n70<\/td>\n80<\/td>\n13<\/td>\n10<\/td>\n115<\/td>\n95<\/td>\n140<\/td>\n4<\/td>\nM8<\/td>\n31<\/td>\n11<\/td>\n4\u00d712.8<\/td>\n28<\/td>\n14<\/td>\n5\u00d73<\/td>\n5<\/td>\n<\/tr>\n
50<\/td>\n0.18<\/td>\n<\/td>\n151<\/td>\n83<\/td>\n97<\/td>\n50<\/td>\n180<\/td>\n80<\/td>\n120<\/td>\n140<\/td>\n95<\/td>\n110<\/td>\n15<\/td>\n12<\/td>\n115<\/td>\n95<\/td>\n140<\/td>\n4<\/td>\nM8<\/td>\n31<\/td>\n11<\/td>\n4\u00d712.8<\/td>\n40<\/td>\n17<\/td>\n5\u00d73<\/td>\n8<\/td>\n<\/tr>\n
60<\/td>\n0.37<\/td>\n<\/td>\n167<\/td>\n91<\/td>\n112<\/td>\n60<\/td>\n202<\/td>\n90<\/td>\n130<\/td>\n150<\/td>\n105<\/td>\n120<\/td>\n20<\/td>\n12<\/td>\n130<\/td>\n110<\/td>\n160<\/td>\n4<\/td>\nM8<\/td>\n33<\/td>\n14<\/td>\n5\u00d716.3<\/td>\n50<\/td>\n22<\/td>\n7\u00d74<\/td>\n11<\/td>\n<\/tr>\n
70<\/td>\n0.37\/0.75<\/td>\n<\/td>\n200\/202<\/td>\n109\/111<\/td>\n131<\/td>\n70<\/td>\n238<\/td>\n105<\/td>\n150<\/td>\n190<\/td>\n115<\/td>\n150<\/td>\n20<\/td>\n15<\/td>\n130\/165<\/td>\n110\/130<\/td>\n160\/200<\/td>\n4<\/td>\nM8\/M10<\/td>\n40\/42<\/td>\n14\/19<\/td>\n5\u00d716.3\/6\u00d721.8<\/td>\n60<\/td>\n28<\/td>\n7\u00d74<\/td>\n17<\/td>\n<\/tr>\n
80<\/td>\n0.75\/1.5<\/td>\n<\/td>\n225<\/td>\n125<\/td>\n142<\/td>\n80<\/td>\n273<\/td>\n120<\/td>\n170<\/td>\n220<\/td>\n135<\/td>\n180<\/td>\n20<\/td>\n15<\/td>\n165<\/td>\n130<\/td>\n200<\/td>\n4.5<\/td>\nM10<\/td>\n48\/52<\/td>\n19\/24<\/td>\n6\u00d721.8\/8\u00d727.3<\/td>\n65<\/td>\n32<\/td>\n10\u00d74.5<\/td>\n22<\/td>\n<\/tr>\n
100<\/td>\n1.5\/2.2\/3.0<\/td>\n<\/td>\n280<\/td>\n148<\/td>\n169<\/td>\n100<\/td>\n334<\/td>\n150<\/td>\n190<\/td>\n270<\/td>\n155<\/td>\n220<\/td>\n25<\/td>\n15<\/td>\n165<\/td>\n130<\/td>\n200<\/td>\n4.5<\/td>\nM10<\/td>\n52<\/td>\n24<\/td>\n8\u00d727.3<\/td>\n75<\/td>\n38<\/td>\n10\u00d74.5<\/td>\n38<\/td>\n<\/tr>\n
120<\/td>\n2.2\/3.0<\/td>\n<\/td>\n333<\/td>\n181<\/td>\n190<\/td>\n120<\/td>\n423<\/td>\n180<\/td>\n230<\/td>\n320<\/td>\n180<\/td>\n260<\/td>\n30<\/td>\n18<\/td>\n215<\/td>\n180<\/td>\n250<\/td>\n5<\/td>\nM12<\/td>\n63<\/td>\n28<\/td>\n8\u00d731.3<\/td>\n85<\/td>\n45<\/td>\n12\u00d74.5<\/td>\n64<\/td>\n<\/tr>\n
135<\/td>\n3.0\/4.0<\/td>\n<\/td>\n375<\/td>\n202<\/td>\n210<\/td>\n135<\/td>\n482<\/td>\n215<\/td>\n250<\/td>\n350<\/td>\n200<\/td>\n290<\/td>\n30<\/td>\n18<\/td>\n215<\/td>\n180<\/td>\n250<\/td>\n5<\/td>\nM12<\/td>\n63<\/td>\n28<\/td>\n8\u00d731.3<\/td>\n95<\/td>\n55<\/td>\n16\u00d76<\/td>\n85<\/td>\n<\/tr>\n
155<\/td>\n5.5<\/td>\n<\/td>\n448<\/td>\n247<\/td>\n252<\/td>\n155<\/td>\n541<\/td>\n235<\/td>\n275<\/td>\n390<\/td>\n220<\/td>\n320<\/td>\n35<\/td>\n21<\/td>\n265<\/td>\n230<\/td>\n300<\/td>\n5<\/td>\nM12<\/td>\n83<\/td>\n38<\/td>\n10\u00d741.3<\/td>\n110<\/td>\n60<\/td>\n18\u00d77<\/td>\n118<\/td>\n<\/tr>\n
175<\/td>\n7.5<\/td>\n<\/td>\n481<\/td>\n262<\/td>\n255<\/td>\n175<\/td>\n600<\/td>\n260<\/td>\n310<\/td>\n430<\/td>\n250<\/td>\n350<\/td>\n40<\/td>\n21<\/td>\n265<\/td>\n230<\/td>\n300<\/td>\n5<\/td>\nM12<\/td>\n83<\/td>\n38<\/td>\n10\u00d741.3<\/td>\n110<\/td>\n65<\/td>\n18\u00d77<\/td>\n165<\/td>\n<\/tr>\n
200<\/td>\n11.0<\/td>\n<\/td>\n543<\/td>\n285<\/td>\n319<\/td>\n200<\/td>\n677<\/td>\n290<\/td>\n360<\/td>\n480<\/td>\n290<\/td>\n390<\/td>\n40<\/td>\n24<\/td>\n300<\/td>\n250<\/td>\n350<\/td>\n6<\/td>\nM16<\/td>\n114<\/td>\n42<\/td>\n12\u00d745.3<\/td>\n125<\/td>\n70<\/td>\n20\u00d77.5<\/td>\n236<\/td>\n<\/tr>\n
250<\/td>\n11.0\/15.0<\/td>\n<\/td>\n615<\/td>\n330<\/td>\n385<\/td>\n250<\/td>\n824<\/td>\n350<\/td>\n460<\/td>\n560<\/td>\n380<\/td>\n480<\/td>\n45<\/td>\n28<\/td>\n300<\/td>\n250<\/td>\n350<\/td>\n6<\/td>\nM16<\/td>\n114<\/td>\n42<\/td>\n12\u00d745.3<\/td>\n155<\/td>\n90<\/td>\n25\u00d79<\/td>\n396<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

* HL = total height including fin array. WPDS and WPDA share identical base footprint (A, B, CC dimensions) \u2014 WPDS is a direct thermal upgrade for existing WPDA installations where adequate vertical clearance exists.<\/p>\n<\/section>\n

\n

Product Structure \u2014 Motor Flange + Cooling Fin System<\/h2>\n
\n
\"WPDS<\/div>\n
\n

The WPDS combines three engineering features in one unit: a precision IEC motor flange at the rear, a cast-integral longitudinal fin array on top and side faces, and the proven FC25 grey cast iron housing carrying the worm gear set. The fins are integral to the casting \u2014 not bolted or bonded on \u2014 ensuring permanent thermal contact and vibration resistance throughout the service life.<\/p>\n\n\n\n\n\n\n\n
Motor Flange<\/td>\nIEC 60034-7 standard; precision pilot register to 0.05 mm TIR<\/td>\n<\/tr>\n
Cooling Fins<\/td>\nCast-integral longitudinal fins; up to +40% external surface area vs WPDA<\/td>\n<\/tr>\n
Housing<\/td>\nFC25 grey cast iron; same base footprint as WPDA<\/td>\n<\/tr>\n
Thermal Gain<\/td>\n~15\u00b0C lower steady-state oil temperature vs equivalent WPDA at rated load<\/td>\n<\/tr>\n
Output Shaft<\/td>\nSolid shaft with keyway; 5 direction positions (A\u2013E)<\/td>\n<\/tr>\n
Compatibility<\/td>\nDrop-in thermal upgrade for existing WPDA installations (verify H clearance)<\/td>\n<\/tr>\n<\/table>\n<\/div>\n<\/div>\n<\/section>\n
\n

\u2705 Key Features & Benefits<\/h2>\n
\n
01<\/span><\/p>\n

Combined Motor-Direct + Thermal Optimisation<\/h3>\n

The WPDS is the only unit in the WP series that simultaneously eliminates coupling components AND provides enhanced thermal capacity. This dual benefit makes it the highest-value choice for high-duty-cycle motor-direct applications where both installation simplicity and thermal stability are required. Keywords: motor-direct gearbox with cooling, flanged worm reducer for continuous operation.<\/em><\/p>\n<\/div>\n

02<\/span><\/p>\n

~15\u00b0C Lower Operating Temperature vs WPDA<\/h3>\n

At equivalent rated load and ambient temperature, the WPDS fin array reduces oil sump temperature by approximately 15\u00b0C compared to the smooth-body WPDA. In a 40\u00b0C machine room, this keeps the WPDS comfortably below the 95\u00b0C maximum oil temperature limit where the WPDA might reach it under peak load.<\/p>\n<\/div>\n

03<\/span><\/p>\n

Precision IEC Flange \u2014 Zero Coupling Alignment<\/h3>\n

The IEC 60034-7 compliant motor flange with precision pilot register accepts standard motors directly. Motor-to-worm shaft connection via keyed bore eliminates coupling selection, alignment checking, and re-alignment after motor replacement \u2014 reducing planned maintenance time significantly.<\/p>\n<\/div>\n

04<\/span><\/p>\n

Cast-Integral Fins \u2014 Permanent Thermal Contact<\/h3>\n

Unlike bolt-on heat sink accessories, the WPDS fins are cast as part of the housing body. This ensures maximum thermal conductivity between the oil bath and the fin surface, with no risk of fin loosening due to vibration over the service life.<\/p>\n<\/div>\n

05<\/span><\/p>\n

Extended Lubricant and Seal Service Life<\/h3>\n

The lower sustained operating temperature directly extends ISO VG 320 mineral oil service life, reduces oxidation and base oil degradation, and slows NBR seal hardening \u2014 cutting total lubrication and seal replacement costs in multi-shift operations.<\/p>\n<\/div>\n

06<\/span><\/p>\n

Drop-In Upgrade from WPDA<\/h3>\n

The WPDS shares the identical base footprint and shaft dimensions with the WPDA. Where a WPDA installation is experiencing overtemperature issues, the WPDS is the most cost-effective upgrade path \u2014 no mounting plate modification, no shaft coupling changes, just verify the increased H dimension fits within the available clearance.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

\n

Industry Applications<\/h2>\n

The WPDS is the solution of choice when a motor-direct drive must operate at high duty cycles or elevated ambient temperatures:<\/p>\n

\n
\n
\u2697\ufe0f<\/div>\n

Chemical & Pharmaceutical<\/strong>Continuous stirred-tank reactor drives, pump motor-gearbox units, and distillation column auxiliaries in high-ambient-temperature process plant environments.<\/span><\/div>\n

\n
<\/div>\n

Paper & Pulp Industry<\/strong>Conveyor drives, press roll auxiliaries, and winding\/unwinding systems in paper mills where high ambient temperatures and continuous multi-shift duty demand thermal stability.<\/span><\/div>\n

\n
<\/div>\n

Rubber & Plastics<\/strong>Extruder take-off conveyors, calendar roll drives, and pelletiser auxiliaries in factories where the combination of hot-ambient conditions and continuous running pushes standard gearboxes to their thermal limits.<\/span><\/div>\n

\n
<\/div>\n

Foundry & Ceramics<\/strong>Conveyor and charging equipment drives in foundries and kiln operations where ambient temperatures regularly exceed 40\u00b0C and the gearbox must operate reliably without auxiliary cooling.<\/span><\/div>\n

\n
<\/div>\n

24\/7 Automated Lines<\/strong>Automotive body shop conveyors, tyre manufacturing drives, and any fully automated production line where the combined thermal load of motor and gearbox in an enclosed cabinet demands the WPDS’s enhanced dissipation capability.<\/span><\/div>\n

\n
<\/div>\n

Middle East & Hot Climate Applications<\/strong>Any industrial application in geographic regions with high ambient temperatures (Gulf States, South Asia, North Africa) where a standard motor-direct gearbox would require supplemental cooling but the WPDS manages thermally without it.<\/span><\/div>\n<\/div>\n<\/section>\n

\n

Quality Control & Certification<\/h2>\n
\n
\n

ISO 9001:2015 & CE<\/h3>\n

Full ISO 9001:2015 QMS with CE Declaration of Conformity per shipment. IEC flange dimensions CMM verified at final inspection against IEC 60034-7 specification.<\/p>\n<\/div>\n

\n

\ufe0f Thermal Stability Run Test<\/h3>\n

Each WPDS undergoes a 90-minute thermal stability run<\/strong> at 110% rated torque. Oil sump temperature must stabilise below 95\u00b0C before shipment approval \u2014 this is a stricter criterion than our standard WPS thermal test, reflecting the additional heat input from a directly coupled motor.<\/p>\n<\/div>\n

\n

Material & Fin Quality<\/h3>\n

Fins are inspected for casting voids, incomplete fill, and dimensional accuracy at foundry stage. Fin pitch, height, and wall thickness are verified against the drawing spec before machining commences \u2014 ensuring consistent thermal performance batch-to-batch.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

\n

Why Choose Ever-power for WPDS Gearboxes<\/h2>\n
\n
\"Ever-power<\/div>\n
\n

We supply WPDS motor-direct finned gearboxes to chemical plant OEMs, rubber and plastics machinery builders, and automation integrators in Germany, Canada, the UAE, and Australia. Our in-house foundry gives us unique control over fin casting quality \u2014 we do not purchase externally cast housings and machine them; every WPDS housing is cast and machined in our own facility.<\/p>\n