{"id":1919,"date":"2026-05-27T06:45:16","date_gmt":"2026-05-27T06:45:16","guid":{"rendered":"https:\/\/chinawormgearbox.xyz\/product\/wpeo-vertical-mount-double-speed-worm-gear-reducer\/"},"modified":"2026-05-27T06:45:17","modified_gmt":"2026-05-27T06:45:17","slug":"wpeo-vertical-mount-double-speed-worm-gear-reducer","status":"publish","type":"product","link":"https:\/\/chinawormgearbox.xyz\/uk\/product\/wpeo-vertical-mount-double-speed-worm-gear-reducer\/","title":{"rendered":"WPEO Vertical Mount Double Speed Worm Gear Reducer"},"content":{"rendered":"
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WPEO Vertical Mount Double Speed Worm Gear Reducer \u2014 Ultra-High Ratio Multi-Direction Installation for Port, Construction & Process Equipment<\/h1>\n

Combining the extreme speed reduction capability of a two-stage worm drive (ratios 1\/200 to 1\/900) with the installation flexibility of up to six mounting orientations (positions A\u2013F including full vertical), the WPEO vertical mount double speed worm gear reducer<\/strong> is engineered for the most demanding space-constrained, high-ratio drive applications. When a harbour crane needs a 1\/600 slewing drive that must mount at an angle, or a construction winch requires 1\/800 reduction in a vertical shaft housing, the WPEO provides the solution where no single-stage product can reach.<\/p>\n

The WPEO two-stage housing incorporates multi-face oil-fill ports ensuring correct lubrication regardless of mounting angle \u2014 a critical design detail absent in many competitor products that offer multi-orientation options without addressing the oil level consequences. Available in 9 size groups<\/strong>, ratios 1\/200\u20131\/900. \u041f\u0440\u043e Ever-power<\/a> | Request a Layout Consultation<\/a><\/p>\n<\/section>\n

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Technical Specifications<\/h2>\n

WPEO dimensional data. BA=housing offset dimension; CA=output shaft extension; E, E\u2081, E\u2082=output shaft geometry dimensions. Reference input speed 1500 r\/min<\/strong>. All dimensions in mm. Shared specification drawing with WPEX.<\/p>\n

\"WPEO<\/div>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Size<\/th>\nRatio<\/th>\nA<\/th>\nAA<\/th>\nAB<\/th>\nBA<\/th>\nBB<\/th>\nBC<\/th>\nBE<\/th>\nHB<\/th>\nCA<\/th>\nM<\/th>\nN<\/th>\nE<\/th>\nE\u2081<\/th>\nE\u2082<\/th>\nG<\/th>\nZ<\/th>\nHS<\/th>\nU<\/th>\nT\u00d7V<\/th>\nLS<\/th>\nS<\/th>\nW\u00d7Y<\/th>\nWt(kg)<\/th>\n<\/tr>\n<\/thead>\n
40-70<\/td>\n1\/200\u20131\/900<\/td>\n286<\/td>\n195<\/td>\n153<\/td>\n40<\/td>\n131<\/td>\n65<\/td>\n87<\/td>\n50<\/td>\n157<\/td>\n156<\/td>\n295<\/td>\n120<\/td>\n120<\/td>\n135<\/td>\n20<\/td>\n15<\/td>\n25<\/td>\n12<\/td>\n4\u00d72.5<\/td>\n60<\/td>\n28<\/td>\n8\u00d74<\/td>\n19<\/td>\n<\/tr>\n
50-80<\/td>\n<\/td>\n297<\/td>\n197<\/td>\n144<\/td>\n50<\/td>\n142<\/td>\n70<\/td>\n108<\/td>\n65<\/td>\n188<\/td>\n175<\/td>\n320<\/td>\n140<\/td>\n130<\/td>\n150<\/td>\n20<\/td>\n15<\/td>\n30<\/td>\n12<\/td>\n4\u00d72.5<\/td>\n65<\/td>\n32<\/td>\n10\u00d74.5<\/td>\n27<\/td>\n<\/tr>\n
60-100<\/td>\n<\/td>\n363<\/td>\n231<\/td>\n175<\/td>\n60<\/td>\n169<\/td>\n90<\/td>\n120<\/td>\n75<\/td>\n222<\/td>\n224<\/td>\n410<\/td>\n190<\/td>\n165<\/td>\n215<\/td>\n22<\/td>\n15<\/td>\n40<\/td>\n15<\/td>\n5\u00d73<\/td>\n75<\/td>\n38<\/td>\n10\u00d74.5<\/td>\n44<\/td>\n<\/tr>\n
70-120<\/td>\n<\/td>\n408<\/td>\n256<\/td>\n193<\/td>\n70<\/td>\n190<\/td>\n100<\/td>\n140<\/td>\n90<\/td>\n260<\/td>\n266<\/td>\n450<\/td>\n220<\/td>\n185<\/td>\n215<\/td>\n30<\/td>\n18<\/td>\n40<\/td>\n18<\/td>\n5\u00d73<\/td>\n85<\/td>\n45<\/td>\n12\u00d74.5<\/td>\n63<\/td>\n<\/tr>\n
80-135<\/td>\n<\/td>\n471<\/td>\n298<\/td>\n226<\/td>\n80<\/td>\n210<\/td>\n110<\/td>\n160<\/td>\n105<\/td>\n295<\/td>\n306<\/td>\n495<\/td>\n260<\/td>\n210<\/td>\n235<\/td>\n30<\/td>\n18<\/td>\n50<\/td>\n22<\/td>\n7\u00d74<\/td>\n95<\/td>\n55<\/td>\n16\u00d76<\/td>\n96<\/td>\n<\/tr>\n
100-155<\/td>\n<\/td>\n555<\/td>\n354<\/td>\n269<\/td>\n100<\/td>\n252<\/td>\n140<\/td>\n190<\/td>\n130<\/td>\n345<\/td>\n350<\/td>\n590<\/td>\n290<\/td>\n245<\/td>\n295<\/td>\n35<\/td>\n21<\/td>\n50<\/td>\n25<\/td>\n7\u00d74<\/td>\n110<\/td>\n60<\/td>\n18\u00d77<\/td>\n149<\/td>\n<\/tr>\n
120-175<\/td>\n<\/td>\n598<\/td>\n379<\/td>\n287<\/td>\n120<\/td>\n255<\/td>\n150<\/td>\n219<\/td>\n155<\/td>\n394<\/td>\n640<\/td>\n320<\/td>\n267<\/td>\n323<\/td>\n40<\/td>\n21<\/td>\n65<\/td>\n30<\/td>\n7\u00d74<\/td>\n110<\/td>\n65<\/td>\n18\u00d77<\/td>\n191<\/td>\n<\/tr>\n
135-200<\/td>\n<\/td>\n662<\/td>\n425<\/td>\n318<\/td>\n135<\/td>\n319<\/td>\n175<\/td>\n256<\/td>\n185<\/td>\n456<\/td>\n440<\/td>\n710<\/td>\n370<\/td>\n290<\/td>\n360<\/td>\n40<\/td>\n24<\/td>\n75<\/td>\n35<\/td>\n10\u00d74.5<\/td>\n125<\/td>\n70<\/td>\n20\u00d77.5<\/td>\n278<\/td>\n<\/tr>\n
155-250<\/td>\n<\/td>\n795<\/td>\n510<\/td>\n380<\/td>\n155<\/td>\n385<\/td>\n200<\/td>\n295<\/td>\n203<\/td>\n545<\/td>\n510<\/td>\n860<\/td>\n440<\/td>\n350<\/td>\n440<\/td>\n45<\/td>\n28<\/td>\n85<\/td>\n40<\/td>\n12\u00d75<\/td>\n155<\/td>\n90<\/td>\n25\u00d79<\/td>\n442<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

* Shared specification drawing with WPEX. BA, BC = housing dimensional offsets for multi-orientation mounting. E\u2081 and E\u2082 = output shaft dimensions for WPEX (dual shaft) variant. Shaft directions A\u2013C for WPEO standard; up to F for special orientations \u2014 consult factory.<\/p>\n<\/section>\n

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Product Structure \u2014 Two-Stage Multi-Direction Housing<\/h2>\n
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\"WPEO<\/div>\n
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The WPEO elongated two-stage housing uses the same two-worm-pair cascade as the WPEA, but the housing body incorporates multi-face oil-fill plugs, reinforced output shaft bearings for combined axial\/radial loads in non-horizontal configurations, and mounting face preparations for multiple bolt patterns. This allows the same unit to serve horizontal, inclined, and vertical drive applications across a wide range of heavy industrial machinery types.<\/p>\n\n\n\n\n\n\n\n
Stages<\/td>\nTwo worm-and-wheel pairs in series; ratio 1\/200\u20131\/900<\/td>\n<\/tr>\n
Shaft Directions<\/td>\nUp to 6 positions (A\u2013F): horizontal, vertical, and intermediate orientations<\/td>\n<\/tr>\n
Oil System<\/td>\nMulti-face oil-fill and drain ports; correct oil level for any mounting orientation<\/td>\n<\/tr>\n
Bearings<\/td>\nReinforced output shaft bearings for combined axial\/radial load in vertical\/inclined mounting<\/td>\n<\/tr>\n
Housing<\/td>\nFC25 cast iron; elongated two-stage body with multi-orientation mounting preparations<\/td>\n<\/tr>\n
Self-Locking<\/td>\nStrong self-locking at ratios \u22651\/400 \u2014 important for vertical and hoisting applications<\/td>\n<\/tr>\n<\/table>\n<\/div>\n<\/div>\n<\/section>\n
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\u2705 Key Features & Benefits<\/h2>\n
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Extreme Ratios + Multi-Orientation \u2014 Unique Combination<\/h3>\n

The WPEO uniquely combines two-stage reduction (1\/200\u20131\/900) with multi-direction mounting capability. No single-stage product can achieve these ratios; few two-stage products can be mounted at non-horizontal angles with confidence. The WPEO delivers both, making it the go-to solution for port machinery, construction hoists, and inclined mine drives. Keywords: vertical mount double speed worm gearbox, multi-direction two-stage reducer.<\/em><\/p>\n<\/div>\n<\/div>\n

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Multi-Face Oil System for Non-Standard Orientations<\/h3>\n

The WPEO housing has oil-fill and drain plugs on multiple faces, ensuring both gear stages maintain correct oil immersion regardless of mounting angle. A critical detail \u2014 and one that distinguishes a properly engineered multi-orientation two-stage unit from products that simply bolt at any angle without addressing lubrication consequences.<\/p>\n<\/div>\n<\/div>\n

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Strong Self-Locking at High Combined Ratios<\/h3>\n

At combined ratios of 1\/400 and above, the WPEO provides robust self-locking behaviour that resists back-driving under static load. In vertical mounting configurations (crane slewing drives, hoist auxiliaries), this passive load-holding function is an important secondary safety feature alongside any dedicated mechanical brake.<\/p>\n<\/div>\n<\/div>\n

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\ufe0f<\/div>\n
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Reinforced Bearings for Vertical Load Vectors<\/h3>\n

The WPEO output shaft bearing arrangement is sized for the combined axial and radial loads specific to vertical and inclined mounting. This is not a standard horizontal gearbox rotated arbitrarily \u2014 the bearing selection reflects the actual load vectors in each supported mounting configuration.<\/p>\n<\/div>\n<\/div>\n

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\u2699\ufe0f<\/div>\n
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Two-Stage Precision for Accurate Slow-Speed Positioning<\/h3>\n

Despite the extreme reduction ratios, both worm pairs are ground to ISO 1328 Grade 7 tolerances, providing the smooth, consistent output speed essential for crane slewing, positioning tables, and other applications where jerky or non-uniform output motion would cause process problems.<\/p>\n<\/div>\n<\/div>\n

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Full 9-Size Range for Every Application Scale<\/h3>\n

Nine two-stage size groups (40-70 through 155-250 mm) cover output torques from approximately 250 Nm up to 6,050 Nm at 1500 r\/min input \u2014 spanning light-duty gate mechanisms to very heavy crane and winch auxiliary drives within a single standardised two-stage product family.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

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Industry Applications<\/h2>\n

The WPEO is specified wherever extreme reduction ratios must be achieved in a non-standard mounting orientation:<\/p>\n

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\ufe0f<\/div>\n

Port & Harbour Cranes<\/strong>Ship loader slewing drives, quay crane luffing drives, and harbour crane slewing mechanisms requiring 1\/400\u20131\/900 ratio with vertical or inclined mounting in the crane structure.<\/span><\/div>\n

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\u00e2\u009b\u008f\u00ef\u00b8\u008f<\/div>\n

Mining Hoists & Inclined Conveyors<\/strong>Underground mine inclined conveyor head drives, shaft hoist slow drives, and inclined skip hoist auxiliary drives where both extreme ratio and inclined mounting are required simultaneously.<\/span><\/div>\n

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\u00f0\u009f\u008f\u009b\u00ef\u00b8\u008f<\/div>\n

Construction Equipment<\/strong>Tower crane slewing ring auxiliary drives, passenger hoist safety drives, and scaffolding material hoist mechanisms requiring compact two-stage ratio reduction at non-standard mounting angles.<\/span><\/div>\n

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\u00f0\u009f\u008c\u008a<\/div>\n

Marine & Offshore Equipment<\/strong>Offshore platform deck crane auxiliaries, ship hatch cover vertical drives, and offshore winch slow drives where compact high-ratio gearboxes must fit within constrained deck and superstructure spaces.<\/span><\/div>\n

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\u00f0\u009f\u0092\u00a7<\/div>\n

Water Treatment & Environment<\/strong>Large clarifier and sedimentation tank slow-rotation drives, vertical rotating drum screen drives, and wastewater treatment aerator drives requiring very low RPM from a vertical drive arrangement.<\/span><\/div>\n

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\u00e2\u009a\u0099\u00ef\u00b8\u008f<\/div>\n

Heavy Process Equipment<\/strong>Cement kiln trunnion drives, heavy rotating trommel drum drives, and large rotary cooler drives where the WPEO’s extreme ratio accommodates the very slow controlled rotation required by the process.<\/span><\/div>\n<\/div>\n<\/section>\n

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\u00f0\u009f\u008f\u0086 Quality Control & Certification<\/h2>\n
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\u00f0\u009f\u0093\u008b ISO 9001:2015 & CE<\/h3>\n

Full ISO 9001:2015 QMS. CE Declaration of Conformity per shipment. The WPEO multi-orientation oil fill system is verified per EN ISO 12100 machinery safety standard, with oil-level confirmation performed in each rated mounting position.<\/p>\n<\/div>\n

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\u00ed\u00b4\u0084 Multi-Orientation Run Test<\/h3>\n

Each WPEO is run-tested in both horizontal and vertical orientations. Noise, temperature (both stage positions), and seal integrity are measured in each orientation. Oil fill levels are verified and documented for all rated mounting positions before shipment with the unit.<\/p>\n<\/div>\n

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\u00f0\u009f\u008f\u0097\u00ef\u00b8\u008f Material Standards<\/h3>\n

Housing: FC25 cast iron (\u00e2\u0089\u00a5250 MPa). Both worm shafts: 20CrMnTi (\u00e2\u0089\u00a558 HRC). Both wheel rims: ZCuSn10Pb1 tin-bronze. Marine-grade documentation (material certs, test reports, SGS\/BV inspection) available for offshore and port authority compliance.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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\u00f0\u009f\u008f\u00a2 Why Choose Ever-power for WPEO Gearboxes<\/h2>\n
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\"Ever-power<\/div>\n
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We supply WPEO multi-orientation two-stage gearboxes to port machinery OEMs, mining equipment builders, and marine equipment manufacturers in France, Canada, Saudi Arabia, Australia, and over 60 countries. Our multi-orientation testing standard \u00e2\u0080\u0094 run test in both horizontal and vertical positions, with oil fill documentation for all rated orientations \u00e2\u0080\u0094 provides genuine assurance for customers mounting these units at non-standard angles in demanding applications.<\/p>\n