{"id":540,"date":"2026-05-26T05:41:30","date_gmt":"2026-05-26T05:41:30","guid":{"rendered":"https:\/\/planetary-gearboxes.com\/?post_type=product&p=540"},"modified":"2026-05-26T05:41:30","modified_gmt":"2026-05-26T05:41:30","slug":"wpl-right-angle-standard-gearbox","status":"publish","type":"product","link":"https:\/\/planetary-gearboxes.com\/ja\/product\/wpl-right-angle-standard-gearbox\/","title":{"rendered":"Standard Right-Angle Planetary Gearbox for General Industry \u2014 WPL Series (WPL40\u2013WPL120)"},"content":{"rendered":"

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Standard Right-Angle Gearbox \u2014 90\u00b0 Output at Competitive Cost<\/h2>\n
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\"WPL<\/p>\n

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90\u00b0<\/div>\n
Output Direction<\/div>\n<\/div>\n
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3\u2013512<\/div>\n
Gear Ratio<\/div>\n<\/div>\n
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30,000h<\/div>\n
Service Life<\/div>\n<\/div>\n
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IP54<\/div>\n
Protection Class<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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The WPL series standard right-angle planetary gearbox<\/strong> delivers 90-degree power transmission for general industrial applications where perpendicular motor-to-load axis arrangement is dictated by machine layout, but where the efficiency, backlash, and cost premium of the WPLE\/WPLF precision series<\/a> is not warranted. Four frame sizes from WPL40 through WPL120 cover motor compatibility from 50 W to 4,000 W<\/strong> with gear ratios spanning 3:1 to 512:1<\/strong> through single, two-stage, and three-stage configurations \u2014 the widest ratio range in our right-angle product family, matching the PL series standard inline range.<\/p>\n

Where WPLE\/WPLF<\/a> targets servo motor positioning with \u22644 arcmin backlash and efficiency up to 97%, WPL series serves the wider industrial market where conveyor drives, packaging machinery, and material handling equipment require reliable 90-degree torque transmission across millions of duty cycles at the lowest possible unit cost. Sealed lifetime lubrication eliminates the quarterly oil-change intervals that keep maintenance teams busy on conventional worm gearboxes operating in the same applications.<\/p>\n

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\ud83d\udcd0 True 90\u00b0 Output<\/div>\n
Perpendicular shaft for compact conveyor and lift machine layouts.<\/div>\n<\/div>\n
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\ud83d\udcca 3-Stage Capability<\/div>\n
Up to 512:1 ratio \u2014 widest range in our right-angle series.<\/div>\n<\/div>\n
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\ud83d\udcb0 Cost-Optimised<\/div>\n
Engineered for competitive BOM pricing in high-volume OEM production.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

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WPL40 \/ WPL60 \/ WPL80 \/ WPL120 \u2014 Model Comparison<\/h2>\n

All four frames deliver the same 90-degree bevel-planetary output, sealed lifetime lubrication, and IP54 protection. Frame size governs torque capacity and compatible motor power. The three-stage option (up to 512:1) is available across all frame sizes \u2014 the longest configuration but essential when very low output speeds are needed without variable-frequency drives.<\/p>\n

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Parameter<\/th>\nWPL40<\/th>\nWPL60<\/th>\nWPL80<\/th>\nWPL120<\/th>\n<\/tr>\n<\/thead>\n
Rated Torque Range<\/td>\n4.5\u201315
\nN\u00b7m<\/span><\/td>\n		20\u201360
\nN\u00b7m<\/span><\/td>\n		50\u2013150
\nN\u00b7m<\/span><\/td>\n		150\u2013450
\nN\u00b7m<\/span><\/td>\n<\/tr>\n
Compatible Motor Power<\/td>\n50\u2013200 W<\/td>\n100\u2013750 W<\/td>\n300\u20131,500 W<\/td>\n1,000\u20134,000 W<\/td>\n<\/tr>\n
Gear Ratio Range<\/td>\n3 : 1 \u2014 512 : 1 (1-, 2-, and 3-stage \u2014 all frames)<\/td>\n<\/tr>\n
Output Direction<\/td>\n90\u00b0 perpendicular to input shaft<\/td>\n<\/tr>\n
\u52b9\u7387<\/td>\n\u2265 90% single-stage \u00b7 \u2265 85% two\/three-stage<\/td>\n<\/tr>\n
\u52d5\u4f5c\u6e29\u5ea6<\/td>\n\u221225 \u00b0C to +90 \u00b0C<\/td>\n<\/tr>\n
Protection Class<\/td>\nIP54 standard \u00b7 IP65 available on request<\/td>\n<\/tr>\n
\u6f64\u6ed1<\/td>\nLifetime sealed grease \u2014 maintenance-free<\/td>\n<\/tr>\n
Service Life<\/td>\n30,000 hours at rated load<\/td>\n<\/tr>\n
Mounting Orientation<\/td>\nAny direction<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\u25b8 Three-Stage Configuration Note: <\/span>
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\nThe 3-stage option extends axial housing length but enables output speeds as low as 0.6 rpm<\/strong> from a 3,000 rpm motor input at 512:1 \u2014 eliminating the need for variable-frequency drive underfrequency operation that causes motor thermal derating at very low speeds. Specify 3-stage when output speed below 10 rpm is required at rated torque.
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WPL vs WPLE\/WPLF \u2014 Choosing the Right Right-Angle Series<\/h2>\n

Both WPL and WPLE\/WPLF deliver 90-degree bevel-planetary output. The decision comes down to whether your application requires servo-class precision \u2014 and whether the cost difference is justified by your performance requirements.<\/p>\n

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Requirement<\/th>\nWPL \u2713<\/th>\nWPLE\/WPLF Better<\/th>\n<\/tr>\n<\/thead>\n
General conveyor, lift, packaging drives<\/td>\n\u2713 Ideal<\/td>\nOverspecified<\/td>\n<\/tr>\n
Ratio required above 100:1 (e.g. 256:1, 512:1)<\/td>\n\u2713 3-stage available<\/td>\nAlso available<\/td>\n<\/tr>\n
Cost is a primary BOM selection criterion<\/td>\n\u2713 Best value<\/td>\nHigher cost<\/td>\n<\/tr>\n
Servo positioning \u22644 arcmin backlash required<\/td>\nNot suitable<\/td>\n\u2713 Ideal<\/td>\n<\/tr>\n
Efficiency >94% required (energy cost critical)<\/td>\n85\u201390% typical<\/td>\n\u2713 Up to 97%<\/td>\n<\/tr>\n
AGV steering, solar tracker, precision indexing<\/td>\nNot recommended<\/td>\n\u2713 Ideal<\/td>\n<\/tr>\n
High-volume OEM, 200+ units\/year production<\/td>\n\u2713 Best ROI<\/td>\nViable<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\u25b8 Upgrade Path: <\/span>
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\nWPL and WPLF series share identical housing dimensions and mounting flanges<\/strong> at equivalent frame sizes. Prototype with WPL for cost-effective development; upgrade to WPLF in production if field testing identifies a need for tighter backlash \u2014 without changing drawings, fixtures, or motor adapter plates.
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\u00a0\"WPLE<\/p>\n

\"WPLF<\/p>\n

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Single, Two-Stage, and Three-Stage Configurations Explained<\/h2>\n

WPL series achieves its 3:1 to 512:1 ratio range through modular stage stacking: a bevel gear input stage for 90-degree direction change, plus one, two, or three inline planetary stages for ratio multiplication. Each configuration occupies a different axial length and delivers a different efficiency, noise, and cost profile.<\/p>\n

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1\u30b9\u30c6\u30fc\u30b8<\/div>\n
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Single-Stage \u2014 3:1 to 9:1 \u00b7 Shortest Length \u00b7 Highest Efficiency<\/h3>\n

Bevel input stage + one planetary stage. Minimum axial housing length and best efficiency (\u226590%). Suitable for conveyor head drives, fan drives, and packaging line axes where moderate speed reduction and compact physical dimensions are the primary requirements. Motor input at 3,000 rpm gives output shaft speeds of 333\u20131,000 rpm \u2014 suitable for direct coupling to conveyor rollers and lead screws without additional belt stages.<\/p>\n<\/div>\n<\/div>\n

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2\u6bb5\u968e<\/div>\n
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Two-Stage \u2014 10:1 to 100:1 \u00b7 Standard Length \u00b7 \u2605 Most Common<\/h3>\n

Bevel input + two planetary stages. The most widely specified WPL configuration for conveyor and lift drives. Covers the 10:1\u2013100:1 ratio range that represents the majority of general industrial right-angle drive applications. Efficiency \u226587% at two-stage. A 3,000 rpm motor at 20:1 gives 150 rpm output \u2014 standard for belt-conveyor head rollers 400\u2013800 mm diameter. Pairs naturally with conveyor drive shafts<\/a> on extended-centre conveyor systems.<\/p>\n<\/div>\n<\/div>\n

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3-Stage<\/div>\n<\/div>\n
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Three-Stage \u2014 125:1 to 512:1 \u00b7 Maximum Ratio \u00b7 Ultra-Low Output Speed<\/h3>\n

Bevel input + three planetary stages. The longest WPL configuration and the only right-angle gearbox in our range capable of 512:1 ratio. Enables output speeds below 10 rpm from standard induction motors without VFD low-frequency thermal derating \u2014 critical for gate drives, slow-conveyor indexing, architectural shading systems, and agricultural spread-rate control drives that need very low consistent output speed. Efficiency \u226585% at three-stage. Works well downstream of agricultural bevel pre-stages<\/a> for outdoor multi-speed implement drives.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

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General Industrial Applications for WPL Series<\/h2>\n
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Belt Conveyor Head & Tail Drives<\/h3>\n

Conveyor systems most commonly require motors mounted perpendicular to the belt centreline to minimise floor footprint and allow undercarriage maintenance access. WPL series two-stage (20:1\u201350:1) delivers the output shaft speed matched to standard 315\u2013500 mm conveyor head drum diameters at typical belt speeds of 0.5\u20132.5 m\/s. WPL60 and WPL80 cover the 100\u20131,500 W induction motor range that represents the majority of general factory conveyor drives. The 30,000-hour sealed service life eliminates the gearbox replacement intervals that cause conveyor shutdowns in food, packaging, and automotive assembly facilities.<\/p>\n<\/div>\n

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Scissor Lift & Vertical Transfer Tables<\/h3>\n

Scissor lift platforms and vertical transfer tables mount drive motors horizontally beneath the lifting deck \u2014 requiring 90-degree output to drive vertical lead screws or rack-and-pinion columns. WPL series IP54 housing withstands hydraulic fluid splatter, metal swarf, and industrial wash-down in workshop and manufacturing environments. WPL80 and WPL120 cover the 300\u20134,000 W motor range for lift platforms from 500 kg to 3,000 kg capacity. Important: a mechanical brake is required for load-holding safety on vertical axes \u2014 WPL does not self-lock.<\/p>\n<\/div>\n

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Packaging & Labelling Machinery<\/h3>\n

Horizontal form-fill-seal machines, carton erectors, and rotary labelling heads arrange drive motors above or beside the machine frame \u2014 requiring 90-degree output to the packaging mechanism axis. WPL40 and WPL60 handle the compact 50\u2013750 W motor range typical of packaging machine auxiliary drives. Sealed grease prevents lubricant contamination of packaging materials that would disqualify conventional open-sump units in food-contact proximity zones. Pairs effectively with self-locking worm stages<\/a> on vertical carton-drop axes.<\/p>\n<\/div>\n<\/div>\n

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Application Quick Reference<\/h3>\n