{"id":962,"date":"2026-06-18T07:42:40","date_gmt":"2026-06-18T07:42:40","guid":{"rendered":"https:\/\/planetary-gearboxes.com\/?post_type=product&p=962"},"modified":"2026-06-18T07:42:40","modified_gmt":"2026-06-18T07:42:40","slug":"416w3-winch-drive-planetary-gearbox","status":"publish","type":"product","link":"https:\/\/planetary-gearboxes.com\/hi\/product\/416w3-winch-drive-planetary-gearbox\/","title":{"rendered":"416W3 Winch Drive Planetary Gearbox Reducer"},"content":{"rendered":"
\n<\/p>\n
\n
\n
MEGA-CLASS \u00b7 1,800 Nm BRAKE \u00b7 FEM M6<\/div>\n

200,000 Nm<\/h2>\n

540,000 Nm at the drum. Nearly two tonnes of gearbox.<\/p>\n

\n
\n
1,800<\/div>\n
Nm Brake<\/div>\n<\/div>\n
\n
80-300<\/div>\n
\u0905\u0928\u0941\u092a\u093e\u0924<\/div>\n<\/div>\n
\n
1,850<\/div>\n
\u0915\u093f\u0932\u094b\u0917\u094d\u0930\u093e\u092e<\/div>\n<\/div>\n
\n
10<\/div>\n
RPM Max Out<\/div>\n<\/div>\n<\/div>\n<\/div>\n

The EP-416W3 is the first winch drive planetary gearbox<\/a> in the catalogue to publish a four-digit brake torque rating. The 1,800 Nm multi-disc brake is not an incremental step from the 415W3 \u2014 it is a redesigned brake architecture sized for the loads that 200,000 Nm of drum torque implies: mine cages descending through kilometre-deep shafts, 300-tonne anchor assemblies deployed to 2,000-metre seabed depths, and semi-submersible drilling rigs held in position against ocean currents and storm forces that would drag a conventional mooring winch off its bollard. The 10 rpm maximum output speed \u2014 the slowest in the catalogue \u2014 reflects the thermal reality of sustaining 200,000 Nm at FEM M6 continuous duty within a housing that dissipates heat only through oil-bath convection and the rotating housing surface.<\/p>\n

\"416W3<\/p>\n<\/section>\n

<\/p>\n

\n

416W3 Winch Drive Planetary Gearbox \u2014 Technical Parameters<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u0930\u0947\u091f\u0947\u0921 \u0906\u0909\u091f\u092a\u0941\u091f \u091f\u0949\u0930\u094d\u0915<\/td>\n200,000 Nm<\/td>\n<\/tr>\n
Gear ratio range<\/td>\n80 to 300 (three-stage planetary)<\/td>\n<\/tr>\n
Maximum input speed<\/td>\n2,500 rpm<\/td>\n<\/tr>\n
Maximum output speed<\/td>\n10 rpm (FEM M6, catalogue lowest)<\/td>\n<\/tr>\n
Mechanical efficiency<\/td>\n\u2265 94%<\/td>\n<\/tr>\n
Parking brake<\/td>\n1,800 Nm, multi-disc, spring-applied, hydraulic release<\/td>\n<\/tr>\n
Brake at drum (max ratio 300)<\/td>\n540,000 Nm<\/td>\n<\/tr>\n
Mounting<\/td>\nHeavy-duty rotating housing flanges<\/td>\n<\/tr>\n
Dry weight<\/td>\nApprox. 1,850 kg<\/td>\n<\/tr>\n
\u0938\u094d\u0928\u0947\u0939\u0928<\/td>\nOil bath splash, premium EP gear oil<\/td>\n<\/tr>\n
\u092a\u0930\u093f\u091a\u093e\u0932\u0928 \u0924\u093e\u092a\u092e\u093e\u0928<\/td>\n-25 to +85 deg C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n

<\/p>\n

\n

1,800 Nm \u2014 What Half a Million Nm of Drum Holding Torque Means in Practice<\/h2>\n

Numbers this large lose their intuitive meaning without context. The 1,800 Nm brake through ratio 300 produces 540,000 Nm at the cable drum. Here is what that holds.<\/p>\n

\n\n\n\n\n\n\n\n
Scenario<\/th>\nDrum PCD<\/th>\n\u0905\u0928\u0941\u092a\u093e\u0924<\/th>\nDrum Hold (Nm)<\/th>\nMax Hold (t) @ SF=2.0<\/th>\n<\/tr>\n<\/thead>\n
AHTS anchor chain<\/td>\n800 mm<\/td>\n200<\/td>\n360,000<\/td>\n91.7 t<\/td>\n<\/tr>\n
Deep mine skip + 1km rope<\/td>\n700 mm<\/td>\n250<\/td>\n450,000<\/td>\n130.8 t<\/td>\n<\/tr>\n
Semi-sub mooring line<\/td>\n600 mm<\/td>\n300<\/td>\n540,000<\/td>\n183.5 t<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
Scale comparison: <\/span>
\nThe 400W1 \u2014 the smallest winch drive in the catalogue \u2014 produces 792 Nm of brake holding torque at its drum. The 416W3 at ratio 300 produces 540,000 Nm. That is a 682:1 ratio between the smallest and this model. The entire 4xxW catalogue spans nearly three orders of magnitude in brake holding capacity \u2014 from a personnel hoist holding two people to a mooring system holding a drilling rig in a storm.<\/span><\/div>\n<\/section>\n

<\/p>\n

\n

10 RPM Maximum Output \u2014 Why the Catalogue Slows Down as Torque Climbs<\/h2>\n

The maximum output speed has progressively decreased through the catalogue: 25 rpm (400-413 series), 12 rpm (414-415), and now 10 rpm (416). This is not arbitrary conservatism \u2014 it is the thermal limit of the housing.<\/p>\n

\n
Heat Generation Scales with Power<\/strong><\/p>\n

Power = torque x speed. At 200,000 Nm and 10 rpm: P = 200,000 x 10 x 2 x 3.14 \/ 60 = 209 kW. At 94% efficiency, the gearbox dissipates 12.6 kW as heat. If the output speed were 25 rpm (like the smaller models): P = 524 kW, heat = 31.4 kW. The oil-bath cooling capacity of the 416W3 housing is approximately 15-18 kW at +85 deg C oil temperature in still air. At 10 rpm, the thermal balance holds. At 25 rpm, it does not.<\/p>\n<\/div>\n

Bearing Fatigue Life at Speed<\/strong><\/p>\n

The output bearings carry 200,000 Nm of torque as a radial load. Bearing L10 life is inversely proportional to speed \u2014 doubling the output speed halves the bearing life at the same load. The 10 rpm limit ensures the output bearings achieve the FEM M6 design target of 30,000+ hours at continuous rated torque. At 25 rpm, the L10 life would drop to approximately 12,000 hours \u2014 below the M6 requirement and unacceptable for production mining winders.<\/p>\n<\/div>\n

What 10 RPM Means for Line Speed<\/strong><\/p>\n

On an 800 mm PCD drum: 10 rpm = 25.1 m\/min. On a 600 mm PCD drum: 10 rpm = 18.8 m\/min. These speeds are within the operational range of deep mining winders (15-30 m\/min) and AHTS anchor handling (5-20 m\/min). The 10 rpm limit does not restrict the practical applications \u2014 it aligns the gearbox output with the actual speed range the machines operate in. No 200,000 Nm winch application needs 25 rpm at the drum.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

\n

200,000 Nm \u2014 The Wire-Rope Hoisting Frontier<\/h2>\n

\"416W3<\/p>\n

\n
\n

Ultra-Deep Mining Main Winders (800-1,500 m)<\/h3>\n

Main production winders at the deepest operating mines \u2014 South African gold and platinum mines at 1,000-1,500 metre depths, and Canadian nickel mines at 800-1,200 metres. The combined skip, ore, and rope weight at these depths reaches 80-120 tonnes. The 416W3 at ratio 200-300 provides the drum torque, and the 1,800 Nm brake holds the loaded skip at any point in the shaft with a safety factor exceeding 2.5 even at the deepest point where the rope weight is maximum.<\/p>\n<\/div>\n

\n

Large AHTS Main Winches (300+ t Bollard Pull)<\/h3>\n

Main anchor handling winches on the largest class of AHTS vessels, deploying and recovering anchor chain assemblies weighing 150-250 tonnes from water depths of 1,000-2,500 metres. The 416W3 at ratio 150-250 with triple or quadruple electric motor drives provides the sustained line pull for deep-water anchor deployment, and the 1,800 Nm brake holds the chain at any depth during operational pauses. The slewing drive<\/a> positions the stern roller and the auxiliary drives<\/a> operate the tugger winches and chain stoppers.<\/p>\n<\/div>\n

\n

Semi-Submersible Mooring Winches<\/h3>\n

Mooring winches on semi-submersible drilling rigs and floating production platforms maintaining station against ocean currents, wind, and wave forces. Each mooring leg may carry 100-200 tonnes of line tension during storm conditions. The 416W3 provides the torque to pay out or haul in wire rope under these tensions, and the 1,800 Nm brake holds the mooring line at constant tension during station-keeping \u2014 a function that may last weeks or months continuously. The track drive<\/a> handles the anchor chain windlass on the same platform.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

\n

The Final Tier \u2014 200,000 Nm and Beyond<\/h2>\n
\n
\"Winch<\/p>\n
\n

Full Winch Drive Range \u2192<\/a><\/h3>\n

417W3 (250,000 Nm) and 419W3 (330,000 Nm) \u2014 the absolute ceiling of the EP winch drive catalogue.<\/p>\n<\/div>\n<\/div>\n

\"Slewing<\/p>\n
\n

Slewing Drive Planetary Gearbox \u2192<\/a><\/h3>\n

ZR series for AHTS stern roller drives and drilling rig turntable mechanisms.<\/p>\n<\/div>\n<\/div>\n

\"Wheel<\/p>\n
\n

Wheel Drive Planetary Gearbox \u2192<\/a><\/h3>\n

EP heavy-duty and ZL24 series for mining haul trucks and platform support vehicles.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

\n

Winch Drive Planetary Gearbox \u2014 200,000 Nm Class FAQ<\/h2>\n
\n
\n

How does the 1,800 Nm brake physically differ from the 610 Nm brake in the 413W3?<\/h3>\n

The 1,800 Nm brake uses a fundamentally larger assembly: piston diameter approximately 60% greater, 4-5 friction discs instead of 3, and a Belleville spring stack producing nearly 3x the clamping force. The hydraulic release pressure remains within the 35-45 bar range because the larger piston area absorbs the increased spring force. The brake housing bore in the 416W3 is a dedicated section of the main housing casting \u2014 not an adaptor bolted to a standard housing \u2014 which ensures concentricity between the brake and the gear train without the alignment tolerances that add-on brake assemblies introduce.<\/p>\n<\/div>\n

\n

How many motors does the 416W3 typically require?<\/h3>\n

At ratio 200, the motor input torque is 1,000 Nm \u2014 requiring approximately 1,800 cc\/rev from a single hydraulic motor at 350 bar. This far exceeds any standard motor. Triple-motor (3 x 600 cc\/rev) or quadruple-motor (4 x 450 cc\/rev) hydraulic configurations are typical. Alternatively, a single or dual large-frame AC induction motor (500-800 kW, 1,000-2,500 rpm) with a variable-frequency drive provides the input power with simpler mechanics and regenerative braking capability. Most new-build 416W3 applications specify electric drive.<\/p>\n<\/div>\n

\n

What crane capacity is needed to install a 1,850 kg winch drive?<\/h3>\n

Minimum 4,000 kg at the working radius. On AHTS vessels, the vessel crane handles the installation during dry-dock or quayside maintenance. On mining headframes, the installation crane is typically a dedicated overhead bridge crane with 5-10 tonne capacity built into the headframe structure. A purpose-built lifting frame matched to the 416W3 housing is essential \u2014 the unit cannot be slung with generic rigging due to the asymmetric weight distribution caused by the large brake assembly on one end. Contact \u0915\u094b\u0930\u093f\u092f\u093e \u090f\u0935\u0930-\u092a\u093e\u0935\u0930<\/a> for the lifting frame specification.<\/p>\n<\/div>\n

\n

What oil volume does the 416W3 require?<\/h3>\n

Approximately 35-50 litres depending on the ratio and mounting angle. Use API GL-5 SAE 80W-90 EP gear oil (or full synthetic SAE 75W-90 for temperatures below -15 deg C). First change at 250 hours. Subsequent changes every 1,000-1,500 hours. Oil sampling every 500 hours is mandatory. At this torque class, an external oil cooler with circulation pump is strongly recommended for any application where the duty cycle exceeds 50% of rated power continuously \u2014 the oil-bath convection alone may not maintain the temperature below 85 deg C in warm climates or enclosed machinery rooms.<\/p>\n<\/div>\n

\n

What is the expected overhaul interval for the 416W3 at sustained mining production duty?<\/h3>\n

Target first overhaul at 20,000-25,000 hours at FEM M6 with full maintenance compliance. The 1,850 kg housing provides substantial thermal mass and structural rigidity that extends component life compared to smaller models at equivalent duty intensity. Brake disc replacement at 8,000-12,000 hours depending on the cycle rate. Seal replacement at 8,000-10,000 hours. Bearing inspection at 15,000 hours. The gear set typically survives to the first overhaul without replacement. Overhaul cost is approximately 35-45% of new unit price. Turnaround time: 6-10 weeks from receipt at the factory.<\/p>\n<\/div>\n

\n

How does the winch drive compare to a direct-drive electric motor at 200,000 Nm?<\/h3>\n

A direct-drive (no gearbox) torque motor producing 200,000 Nm would weigh approximately 15,000-25,000 kg and require a custom-wound stator with a diameter exceeding 3 metres \u2014 it is not a standard product. The 416W3 at 1,850 kg plus a 500-800 kW standard electric motor at 500-1,000 kg totals 2,350-2,850 kg for the same drum torque. The geared solution is 5-10 times lighter, uses standard catalogue motors, and provides the mechanical brake that direct-drive solutions cannot offer without an external braking system. For all practical purposes, the planetary gearbox is the only viable architecture for 200,000 Nm drum-integrated winch drives<\/a>.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

\n

Field Reports<\/h2>\n
\n
\n
\n
\u092a\u0940<\/div>\n
\n
Pieter V. \u2014 Deep Mine Winding Superintendent<\/div>\n
Verified Purchase \u00b7 Welkom, South Africa \u00b7 March 2026<\/div>\n<\/div>\n
\u2605\u2605\u2605\u2605\u2605<\/div>\n<\/div>\n

Main production winder at a 1,200-metre gold mine. 416W3 at ratio 280, dual 750 kW AC motors with VFD. The skip carries 22 tonnes of ore at 350 cycles per day through a shaft where the 1,200-metre rope weighs 7,200 kg. The 1,800 Nm brake at ratio 280 produces 504,000 Nm at the drum \u2014 holding the loaded skip plus rope at SF = 2.9 at the deepest point. After 10 months of production duty (approximately 5,400 hours), the brake holding test shows 0.8% degradation from factory \u2014 well within the 5% threshold for our next DMR inspection. The previous winder (different supplier, 160,000 Nm class) was showing 4.2% brake degradation at the same service hours. The 416W3 is operating in a different reliability league.<\/p>\n<\/div>\n

\n
\n
E<\/div>\n
\n
Erik S. \u2014 AHTS Winch System Designer<\/div>\n
Verified Purchase<\/div>\n<\/div>\n
\u2605\u2605\u2605\u2605\u2605<\/div>\n<\/div>\n

350 t bollard pull AHTS, main anchor handling winch, 416W3 at ratio 200, quad 400 kW electric motors. The vessel completed 14 deep-water anchor deployments in the Gulf of Mexico during the first 8 months of operation \u2014 the deepest at 1,800 metres. The 1,800 Nm brake held the 180-tonne chain assembly at 1,800 metres for 6 hours during a weather standby without any drift on the chain counter. Oil temperature peaked at 71 deg C during the heaviest retrieval operation (15 m\/min at 85% rated torque for 45 continuous minutes). The external oil cooler maintained stable temperatures throughout. ABS class survey passed without findings.<\/p>\n<\/div>\n

\n
\n
\u0921\u0940<\/div>\n
\n
Dmitri K. \u2014 Drilling Rig Mooring Supervisor<\/div>\n
Verified Purchase \u00b7 May 2026<\/div>\n<\/div>\n
\u2605\u2605\u2605\u2605\u2606<\/div>\n<\/div>\n

Semi-submersible drilling rig, 8-point mooring system, one 416W3 per mooring leg at ratio 250. The winches maintain constant mooring tension during drilling operations \u2014 each leg carries 80-150 tonnes depending on current and weather conditions. The 416W3 has operated continuously for 7 months with periodic tension adjustments and one full mooring line recovery for inspection. The 4-star is a maintenance observation: the 1,850 kg unit weight means that the annual brake inspection requires the rig crane to lift the drum assembly \u2014 a 12-hour operation that occupies the main deck crane and blocks cargo operations for an entire day. If the brake could be inspected through an access port in the drum housing without removing the complete unit, the annual inspection downtime would drop from 12 hours to approximately 3 hours per mooring winch. For an 8-winch rig, this is 72 hours of saved crane time per year.<\/p>\n<\/div>\n<\/div>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"

The EP-416W3 pairs 200,000 Nm of output torque with a 1,800 Nm integral parking brake \u2014 the largest published brake rating in the winch drive planetary gearbox catalogue. Through ratio 300, that 1,800 Nm becomes 540,000 Nm at the cable drum: enough to hold 180 tonnes suspended on a 600 mm PCD drum with a safety factor exceeding 3.0. At 1,850 kg dry weight, FEM M6 heavy continuous duty, and a maximum output speed of 10 rpm, the 416W3 serves the machines that operate at the absolute upper boundary of wire-rope hoisting \u2014 ultra-deep mining main winders, 300+ tonne bollard pull AHTS vessels, and semi-submersible mooring systems holding drilling rigs in position through hurricanes.<\/div>","protected":false},"featured_media":963,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[969],"product_tag":[],"class_list":["post-962","product","type-product","status-publish","has-post-thumbnail","product_cat-winch-drive-planetary-gearbox","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/planetary-gearboxes.com\/hi\/wp-json\/wp\/v2\/product\/962","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/planetary-gearboxes.com\/hi\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/planetary-gearboxes.com\/hi\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/hi\/wp-json\/wp\/v2\/comments?post=962"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/hi\/wp-json\/wp\/v2\/media\/963"}],"wp:attachment":[{"href":"https:\/\/planetary-gearboxes.com\/hi\/wp-json\/wp\/v2\/media?parent=962"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/hi\/wp-json\/wp\/v2\/product_brand?post=962"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/hi\/wp-json\/wp\/v2\/product_cat?post=962"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/hi\/wp-json\/wp\/v2\/product_tag?post=962"}],"curies":[{"name":"\u0921\u092c\u094d\u0932\u094d\u092f\u0942\u092a\u0940","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}