{"id":512,"date":"2026-05-25T07:02:42","date_gmt":"2026-05-25T07:02:42","guid":{"rendered":"https:\/\/planetary-gearboxes.com\/?post_type=product&p=512"},"modified":"2026-05-25T07:03:04","modified_gmt":"2026-05-25T07:03:04","slug":"pl-standard-economical-planetary-gearbox","status":"publish","type":"product","link":"https:\/\/planetary-gearboxes.com\/el\/product\/pl-standard-economical-planetary-gearbox\/","title":{"rendered":"\u03a4\u03c5\u03c0\u03b9\u03ba\u03cc \u03bf\u03b9\u03ba\u03bf\u03bd\u03bf\u03bc\u03b9\u03ba\u03cc \u03c0\u03bb\u03b1\u03bd\u03b7\u03c4\u03b9\u03ba\u03cc \u03ba\u03b9\u03b2\u03ce\u03c4\u03b9\u03bf \u03c4\u03b1\u03c7\u03c5\u03c4\u03ae\u03c4\u03c9\u03bd \u03b3\u03b9\u03b1 \u03b3\u03b5\u03bd\u03b9\u03ba\u03ae \u03b2\u03b9\u03bf\u03bc\u03b7\u03c7\u03b1\u03bd\u03af\u03b1 \u2014 \u03a3\u03b5\u03b9\u03c1\u03ac PL (PL40\u2013PL160)"},"content":{"rendered":"

<\/main><\/p>\n
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Standard Planetary Gearbox \u2014 Proven Performance, Optimised Cost<\/h2>\n
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\"PL<\/p>\n

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4.5\u2013800<\/div>\n
Output Torque (N\u00b7m)<\/div>\n<\/div>\n
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3\u2013512<\/div>\n
Gear Ratio<\/div>\n<\/div>\n
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10,000<\/div>\n
Max rpm (PL40)<\/div>\n<\/div>\n
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30,000h<\/div>\n
Service Life<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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\u039f PL series standard planetary gearbox<\/strong> fills the widest band of industrial transmission requirements \u2014 applications that need reliable torque multiplication across millions of operating cycles, consistent ratio accuracy, and sealed low-maintenance operation, but do not demand the ultra-low backlash of precision servo systems. Six frame sizes from PL40 through PL160 deliver output torque from 4.5 N\u00b7m to 800 N\u00b7m<\/strong>, covering servo, stepper, and induction motor outputs from 50 W to 6,000 W without requiring intermediate coupling stages or custom adapters.<\/p>\n

Where PLE\/PLF precision-grade reducers<\/a> prioritise backlash below 4 arcminutes for servo positioning, and PF high-torque units<\/a> target sustained heavy-load mining drives, PL series is optimised for the cost-sensitive industrial middle ground: printing lines, food conveyors, textile machinery, and automated handling systems where 10\u201320 arcmin backlash is entirely adequate and purchase price directly affects machine BOM competitiveness.<\/p>\n

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\ud83d\udcb0 Cost-Optimised<\/div>\n
Efficient manufacturing keeps unit cost competitive for high-volume OEM BOM budgets.<\/div>\n<\/div>\n
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\ud83d\udce6 6 Frame Sizes<\/div>\n
PL40\u2013PL160 covers 50 W to 6,000 W motors with a single series selection process.<\/div>\n<\/div>\n
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\ud83d\udd27 Zero Maintenance<\/div>\n
Sealed lifetime lube \u2014 no oil changes over a 30,000-hour service life.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

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PL40 \/ PL60 \/ PL80 \/ PL100 \/ PL120 \/ PL160 \u2014 Model Comparison<\/h2>\n

All six frames share the same ratio range, lubrication system, and IP54 protection class. Frame size determines output torque capacity, maximum input speed, and compatible motor power range. Select the smallest frame whose output torque exceeds your calculated load requirement \u2014 oversizing the frame wastes cost without performance benefit.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nPL40<\/th>\nPL60<\/th>\nPL80<\/th>\nPL100<\/th>\nPL120<\/th>\nPL160<\/th>\n<\/tr>\n<\/thead>\n
Rated Torque Range<\/td>\n4.5\u201312
\nN\u00b7m<\/span><\/td>\n		20\u201350
\nN\u00b7m<\/span><\/td>\n		40\u2013120
\nN\u00b7m<\/span><\/td>\n		80\u2013250
\nN\u00b7m<\/span><\/td>\n		120\u2013400
\nN\u00b7m<\/span><\/td>\n		300\u2013800
\nN\u00b7m<\/span><\/td>\n<\/tr>\n
Max Input Speed (no-load)<\/td>\n10,000
\n\u03c3\u03c4\u03c1\u03bf\u03c6\u03ad\u03c2\/\u03bb\u03b5\u03c0\u03c4\u03cc<\/span><\/td>\n		8,000
\n\u03c3\u03c4\u03c1\u03bf\u03c6\u03ad\u03c2\/\u03bb\u03b5\u03c0\u03c4\u03cc<\/span><\/td>\n		6,000
\n\u03c3\u03c4\u03c1\u03bf\u03c6\u03ad\u03c2\/\u03bb\u03b5\u03c0\u03c4\u03cc<\/span><\/td>\n		6,000
\n\u03c3\u03c4\u03c1\u03bf\u03c6\u03ad\u03c2\/\u03bb\u03b5\u03c0\u03c4\u03cc<\/span><\/td>\n		6,000
\n\u03c3\u03c4\u03c1\u03bf\u03c6\u03ad\u03c2\/\u03bb\u03b5\u03c0\u03c4\u03cc<\/span><\/td>\n		6,000
\n\u03c3\u03c4\u03c1\u03bf\u03c6\u03ad\u03c2\/\u03bb\u03b5\u03c0\u03c4\u03cc<\/span><\/td>\n<\/tr>\n
Compatible Motor Power<\/td>\n50\u2013200 W<\/td>\n100\u2013750 W<\/td>\n300\u20131,500 W<\/td>\n750\u20133,000 W<\/td>\n1,500\u20134,000 W<\/td>\n3,000\u20136,000 W<\/td>\n<\/tr>\n
Backlash (Standard)<\/td>\n\u2264 10\u201320 arcmin (single-stage \u226410, multi-stage \u226420)<\/td>\n<\/tr>\n
Efficiency (full load)<\/td>\n\u2265 90% (single-stage) \u00b7 \u2265 85% (multi-stage)<\/td>\n<\/tr>\n
Gear Ratio Range<\/td>\n3 : 1 \u2014 512 : 1 (all frame sizes)<\/td>\n<\/tr>\n
\u0398\u03b5\u03c1\u03bc\u03bf\u03ba\u03c1\u03b1\u03c3\u03af\u03b1 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b1\u03c2<\/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
\u039b\u03ac\u03b4\u03c9\u03bc\u03b1<\/td>\nLifetime sealed grease \u2014 maintenance-free<\/td>\n<\/tr>\n
Service Life (rated load)<\/td>\n30,000 hours<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

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\u25b8 Frame Selection Rule: <\/span>
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\nCalculate required output torque as: Tout<\/sub> = (Motor rated torque \u00d7 Gear ratio \u00d7 Efficiency). Select the frame whose rated torque exceeds Tout<\/sub> by at least 20%<\/strong> for service factor margin. If calculated torque falls between two frame sizes, always select the larger frame \u2014 PL series pricing makes one frame-size step a minor cost difference.
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Where PL Series Fits \u2014 The Smart Choice for General Industry<\/h2>\n

Planetary gearbox<\/a> selection involves matching precision class and cost to the actual application requirement. Specifying a precision servo reducer for a conveyor drive wastes budget; specifying an economical unit for a robotic positioning axis compromises quality. The matrix below clarifies where PL series is the right answer.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n
Requirement<\/th>\nPL Series \u2713<\/th>\nPLE\/PLF Better<\/th>\nPF Better<\/th>\n<\/tr>\n<\/thead>\n
Backlash tolerance \u226410\u201320 arcmin adequate<\/td>\n\u2713 Ideal<\/td>\nOverspecified<\/td>\nOverspecified<\/td>\n<\/tr>\n
Output torque 4.5\u2013800 N\u00b7m<\/td>\n\u2713 Ideal<\/td>\nAlso available<\/td>\nHigher range<\/td>\n<\/tr>\n
Cost is a primary selection criterion<\/td>\n\u2713 Best value<\/td>\nHigher cost<\/td>\nHigher cost<\/td>\n<\/tr>\n
Servo positioning <4 arcmin required<\/td>\nNot suitable<\/td>\n\u2713 Ideal<\/td>\n\u2014<\/td>\n<\/tr>\n
Sustained heavy industrial load >800 N\u00b7m<\/td>\nExceeds range<\/td>\n\u2014<\/td>\n\u2713 Ideal<\/td>\n<\/tr>\n
High-volume OEM (100+ units\/year)<\/td>\n\u2713 Best ROI<\/td>\nViable<\/td>\nViable<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n

\"types<\/p>\n

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Industry Applications Across General Automation<\/h2>\n
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Printing Machinery & Converting<\/h3>\n

Sheet-fed and web-offset printing presses integrate PL series reducers for paper feed roller drives, ink fountain gear trains, and sheeter\/folder axes. The 10 arcmin single-stage backlash specification is well within the \u00b10.5 mm registration tolerance of commercial print jobs, making PL series the cost-optimal choice where PLE\/PLF precision is unnecessary. PL80 and PL100 frames cover the 300\u20132,000 W motor range typical of commercial printing press auxiliary drives. Paired with our right-angle worm reducer<\/a> for dancer-roll positioning axes where self-locking is needed.<\/p>\n<\/div>\n

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Textile & Fibre Processing<\/h3>\n

Warp beam drives, yarn winding take-up units, and fabric finishing stenter frames require long-duration cyclic operation at moderate torque \u2014 exactly the duty profile that PL series 30,000-hour life and sealed lubrication address. Fibre-contaminated environments benefit from IP54 protection; the sealed housing prevents lint accumulation in the gear cavity that shortens open-sump reducer life. PL60 and PL80<\/strong> frames cover the 100\u20131,500 W range most common in textile machinery.<\/p>\n<\/div>\n

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Food Processing & Packaging Lines<\/h3>\n

Conveyor belt drives, filling carousel heads, and dough mixing gear trains in food factories demand sealed, hygienic-compatible reducers that do not risk grease contamination. PL series sealed grease fill eliminates the periodic oil top-up that creates contamination risk in open-sump units near food contact surfaces. IP54 handles routine wash-down; IP65 option available for high-pressure cleaning zones. Pairs effectively with food-safe agricultural gearboxes<\/a> for multi-axis drive trains.<\/p>\n<\/div>\n<\/div>\n

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Application Quick Reference<\/h3>\n