{"id":1011,"date":"2026-06-22T06:50:05","date_gmt":"2026-06-22T06:50:05","guid":{"rendered":"https:\/\/planetary-gearboxes.com\/?post_type=product&p=1011"},"modified":"2026-06-22T06:50:05","modified_gmt":"2026-06-22T06:50:05","slug":"zl30-winch-drive-planetary-gearbox","status":"publish","type":"product","link":"https:\/\/planetary-gearboxes.com\/el\/product\/zl30-winch-drive-planetary-gearbox\/","title":{"rendered":"ZL30 Winch Drive Planetary Gearbox"},"content":{"rendered":"
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<\/p>\n

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ZL Series \u00b7 Electric-Era Winch Drive<\/div>\n

ZL30
\nThe catalogue splits here.<\/span><\/h2>\n

Every winch drive planetary gearbox<\/a> below the ZL30 was built for the hydraulic era. The ZL30 and every ZL model above it are built for the electric era \u2014 4,000 rpm, helical gears, DIN 5-6 accuracy, and a peak-to-continuous ratio that changes how shock loads are handled.<\/p>\n<\/div>\n

\n
\n
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27,000<\/div>\n
Nm Cont.<\/div>\n<\/div>\n
\n
75,500<\/div>\n
Nm Peak<\/div>\n<\/div>\n
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4-1,259<\/div>\n
\u0391\u03bd\u03b1\u03bb\u03bf\u03b3\u03af\u03b5\u03c2<\/div>\n<\/div>\n
\n
1-4<\/div>\n
\u03a3\u03c4\u03ac\u03b4\u03b9\u03b1<\/div>\n<\/div>\n<\/div>\n
4,000 RPM<\/span>
\nHelical DIN 5-6<\/span>
\nIP67+<\/span>
\nPt 15-46 kW<\/span><\/div>\n<\/div>\n<\/div>\n

The ZL30 is the entry point to a ten-model ZL winch drive family spanning from 27,000 Nm to 175,000 Nm \u2014 running parallel to the 4xxW series at overlapping torque levels but with a fundamentally different internal architecture. Where the 4xxW series uses straight-cut gears at 1,000-3,500 rpm input and 25 rpm maximum output, the ZL30 uses helical-cut gears at 4,000 rpm input with ratio coverage from 4 to 1,259 across 1-4 planetary stages. The result is a winch drive that pairs directly with PMSM servo motors, AC induction drives, and high-speed BLDC motors \u2014 the propulsion technology that is replacing hydraulics on every new-build crane, marine winch, and industrial hoist platform entering service today.<\/p>\n<\/section>\n

<\/p>\n

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ZL30 Electric Winch Drive Planetary Gearbox \u2014 Technical Parameters<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n
Continuous torque (N2xh=100,000)<\/td>\n27,000 Nm<\/td>\n<\/tr>\n
\u039c\u03ad\u03b3\u03b9\u03c3\u03c4\u03b7 \u03c1\u03bf\u03c0\u03ae<\/td>\n75,500 Nm (2.8x continuous)<\/td>\n<\/tr>\n
Gear ratio range<\/td>\n4 to 1,259 (1-4 stages)<\/td>\n<\/tr>\n
Maximum input speed<\/td>\n4,000 rpm<\/td>\n<\/tr>\n
Thermal power (Pt)<\/td>\n15 – 46 kW (F\/M, varies by stage)<\/td>\n<\/tr>\n
Gear type<\/td>\nHelical planetary, 3-planet, DIN 5-6<\/td>\n<\/tr>\n
Integrated brake<\/td>\nNone (motor brake or external brake)<\/td>\n<\/tr>\n
Sealing<\/td>\nMulti-lip FKM, IP67+<\/td>\n<\/tr>\n
Housing<\/td>\nDuctile iron QT600-3<\/td>\n<\/tr>\n
\u03a5\u03bb\u03b9\u03ba\u03cc \u03b3\u03c1\u03b1\u03bd\u03b1\u03b6\u03b9\u03ce\u03bd<\/td>\n20CrMnTi, HRC 58-62<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n

<\/p>\n

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Two Architecture Families \u2014 Why the Winch Drive Catalogue Has a 4xxW Series AND a ZL Series<\/h2>\n

The 4xxW and ZL winch drive series overlap in torque \u2014 the 407W3 at 26,000 Nm and the ZL30 at 27,000 Nm deliver nearly identical output. The overlap is deliberate: both serve machines at the same load class, but through different propulsion technologies.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u03a0\u03b1\u03c1\u03ac\u03bc\u03b5\u03c4\u03c1\u03bf\u03c2<\/th>\n4xxW Series<\/th>\nZL Series<\/th>\n<\/tr>\n<\/thead>\n
Designed for<\/td>\nHydraulic motors<\/td>\nElectric motors<\/td>\n<\/tr>\n
\u03a4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 \u03b5\u03b9\u03c3\u03cc\u03b4\u03bf\u03c5<\/td>\n1,000-3,500 rpm<\/td>\n4,000-5,000 rpm<\/td>\n<\/tr>\n
Gear type<\/td>\nStraight-cut<\/td>\nHelical (40% quieter)<\/td>\n<\/tr>\n
Gear accuracy<\/td>\n\u03a0\u03c1\u03cc\u03c4\u03c5\u03c0\u03bf<\/td>\nDIN 5-6<\/td>\n<\/tr>\n
Peak \/ continuous<\/td>\n~2.0x<\/td>\n2.8x<\/td>\n<\/tr>\n
Integrated brake<\/td>\nYes (most models)<\/td>\nNo (motor\/external)<\/td>\n<\/tr>\n
\u0391\u03c1\u03b9\u03b8\u03bc\u03cc\u03c2 \u03c3\u03c4\u03b1\u03b4\u03af\u03c9\u03bd<\/td>\n1-3<\/td>\n1-4 (or 1-5)<\/td>\n<\/tr>\n
Ratio range (ZL30 vs 407W3)<\/td>\n63-136<\/td>\n4-1,259<\/td>\n<\/tr>\n
Regen braking<\/td>\nNot applicable<\/td>\nFull compatibility<\/td>\n<\/tr>\n
Sealing<\/td>\nStandard oil seals<\/td>\nIP67+ FKM<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
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Choose 4xxW when:<\/strong><\/p>\n

The vessel or mine has an existing hydraulic power unit. The applicable standard requires an in-drum brake (4xxW has it; ZL does not). The fleet is standardised on 4xxW and cross-compatibility matters. The operating environment is above -25 deg C.<\/p>\n<\/div>\n

Choose ZL when:<\/strong><\/p>\n

The winch is powered by an electric motor (AC induction, PMSM, BLDC). Regenerative braking energy recovery is part of the energy strategy. Low noise matters (helical gears). The application needs ratios below 60 or above 300 (outside 4xxW range). The VFD provides electronic braking and the motor has an integrated electromagnetic brake.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

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Peak 75,500 Nm at 27,000 Nm Continuous \u2014 Why the 2.8:1 Ratio Changes Shock-Load Engineering<\/h2>\n

The 4xxW series offers approximately 2:1 peak-to-continuous. The ZL30 offers 2.8:1. That 40% increase in peak headroom means the ZL30 at 27,000 Nm continuous can absorb the same shock loads as a 4xxW model rated at approximately 37,500 Nm continuous \u2014 because the peak capacity (75,500 Nm) exceeds the 4xxW peak at that torque level.<\/p>\n

\"ZL30<\/p>\n

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Grab Crane Impacts<\/strong><\/p>\n

A grab crane strike produces torque spikes of 180-250% of continuous rated load. At 27,000 Nm continuous x 2.5 = 67,500 Nm peak demand. The ZL30 peak of 75,500 Nm covers this with 12% margin. A 4xxW model at 27,000 Nm continuous (similar to the 407W3 at 26,000 Nm) would peak at approximately 52,000 Nm \u2014 insufficient for the 67,500 Nm spike. The ZL30 handles grab duty that the equivalent 4xxW model cannot.<\/p>\n<\/div>\n

Snatch Loads During Cable Tensioning<\/strong><\/p>\n

Marine winches handling towing wires, mooring lines, and anchor wires experience snatch loads when the cable goes from slack to taut. These transients can reach 2.5-3.0 times the steady-state tension for 50-200 milliseconds. The ZL30 75,500 Nm peak absorbs snatch events up to 2.8x the continuous rating without exceeding the gear tooth bending limit \u2014 allowing the winch designer to size the gearbox based on the continuous duty requirement rather than the worst-case transient.<\/p>\n<\/div>\n

Emergency Stops at Speed<\/strong><\/p>\n

When the electric motor brake engages at full hoisting speed to perform an emergency stop, the motor deceleration torque plus the suspended load inertia produce a combined torque at the gearbox output that can exceed 2x the steady-state lifting torque. The ZL30 2.8:1 peak ratio provides the margin for these emergency events without gear damage \u2014 and the electric motor VFD can be programmed to limit the deceleration rate so the combined torque stays within the 75,500 Nm envelope.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

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ZL30 \u2014 The Electric Winch Drive for the Next Generation of Crane Hoists<\/h2>\n

\"ZL30<\/p>\n

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Electric Crane Hoists (10-25 t SWL)<\/h3>\n

Battery-electric and mains-electric crane hoists replacing hydraulic systems on new-build mobile cranes, tower cranes, and offshore platform cranes. The ZL30 at ratio 40-100 paired with a 100-250 kW PMSM motor provides the hoisting torque with 40% lower noise than the equivalent 4xxW hydraulic system, plus regen braking that recovers 15-25% of the lowering energy. The slewing drive<\/a> handles the crane rotation on the same electric platform.<\/p>\n<\/div>\n

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Electric Marine Deck Winches<\/h3>\n

All-electric or hybrid-electric vessel deck winches for mooring, towing, and cargo handling. The ZL30 at ratio 80-200 paired with a 50-150 kW AC induction motor eliminates the hydraulic power unit, oil reservoir, and associated piping \u2014 reducing the deck equipment weight by 30-40% and eliminating the environmental risk of hydraulic oil spills on deck. The IP67+ sealing handles the marine environment, and the helical gears keep the noise below the crew comfort limits for winches mounted near accommodation.<\/p>\n<\/div>\n

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Automated Industrial Hoists<\/h3>\n

Servo-motor-driven overhead hoists in manufacturing, warehousing, and logistics centres where precise load positioning and automated cycle control are essential. The ZL30 DIN 5-6 accuracy preserves the motor encoder resolution through the gear reduction, enabling the PLC to command the hoist position to sub-millimetre accuracy. The 4-stage option at ratios 500-1,259 provides ultra-slow precision for final component placement<\/a> in automated assembly lines.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

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The ZL Electric Winch Drive Family<\/h2>\n
\n
\"Winch<\/p>\n
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Full ZL Winch Drive Range \u2192<\/a><\/h3>\n

ZL35 (34,000 Nm) to ZL200 (175,000 Nm) for heavier electric winch applications.<\/p>\n<\/div>\n<\/div>\n

\"ZL24<\/p>\n
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ZL Wheel Drive Planetary Gearbox \u2192<\/a><\/h3>\n

Same ZL architecture for electric vehicle wheel propulsion on the same electric crane platforms.<\/p>\n<\/div>\n<\/div>\n

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

ZR series for crane rotation on the same electric crane and marine platforms.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

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Electric Winch Drive Planetary Gearbox \u2014 ZL Series FAQ<\/h2>\n
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Does the ZL30 share components with the ZL24 wheel drive?<\/h3>\n

The ZL30 and ZL24 share the same helical gear architecture, the same DIN 5-6 accuracy standard, the same housing material (QT600-3), and the same sealing philosophy (IP67+ FKM). However, the ZL30 is configured for winch drum integration (rotating housing with drum flanges) while the ZL24 is configured for wheel hub mounting (output flange rotation). The internal gear sets may share the same tooth counts at overlapping ratios, but the housing, output shaft, and seal arrangement are different. They are cousins, not twins.<\/p>\n<\/div>\n

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Why is the ZL30 peak-to-continuous ratio 2.8:1 versus approximately 2.0:1 for the 4xxW series?<\/h3>\n

The ZL helical gear tooth profile distributes load across a wider contact band than the straight-cut gears in the 4xxW series. This wider contact area allows the tooth to carry higher transient loads before the bending stress reaches the fatigue endurance limit. Additionally, the 100,000-hour life rating of the ZL series is calculated at the continuous torque \u2014 the peak torque is explicitly rated for short-duration events (sub-10-second), which allows a higher peak-to-continuous spread than the FEM M5\/M6 classification used for the 4xxW series (which includes the peak loading in the fatigue calculation).<\/p>\n<\/div>\n

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How does the ZL30 handle load holding without an integrated brake?<\/h3>\n

Three methods, identical to the ZL wheel drive approach: (1) Motor-integrated electromagnetic brake \u2014 most PMSM and AC induction motors offer a factory brake option that acts on the motor shaft and is multiplied through the gear ratio. (2) Electronic braking via the VFD \u2014 motor short-circuit braking or active current braking holds the load through the motor controller. (3) External drum calliper brake for applications requiring a purely mechanical hold independent of the electrical system. For lifting applications, at least two independent braking methods are required by EN 14492 and equivalent standards.<\/p>\n<\/div>\n

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Can the ZL30 winch drive be used with a hydraulic motor instead of an electric motor?<\/h3>\n

Technically yes \u2014 the input spline accepts any shaft that matches the mechanical interface. However, most hydraulic motors at the 27,000 Nm torque level operate at 1,500-3,000 rpm, which underutilises the ZL30 4,000 rpm input capability. The helical gears and DIN 5-6 accuracy, which cost more than straight-cut gears, provide no benefit with a hydraulic motor that does not use encoder feedback. For hydraulic drive at this torque level, the 4xxW series (407AW or 407W3) is the more cost-effective choice. Choose the ZL30 only when the motor is electric.<\/p>\n<\/div>\n

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What noise level does the ZL30 produce compared to the 407W3 at the same torque?<\/h3>\n

The ZL30 helical gears produce approximately 8-12 dB(A) less noise than the 407W3 straight-cut gears at equivalent speed and torque. At 2,000 rpm input under full load, the ZL30 typically measures 65-70 dB(A) at 1 metre versus 76-82 dB(A) for the 407W3. On an electric crane with no engine noise, this difference is the primary audible characteristic of the hoist system. For cranes operating near hospitals, residential areas, or indoor environments, the ZL30 noise advantage is often the specification driver.<\/p>\n<\/div>\n

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What is the ratio 1,259 at 4-stage used for in a winch application?<\/h3>\n

At ratio 1,259 with a 3,000 rpm motor: output = 2.4 rpm. On a 400 mm PCD drum: line speed = 3.0 m\/min. This is ultra-precision territory \u2014 lowering a sensor package into a borehole, deploying a remotely operated vehicle (ROV) through a moon pool, or positioning a delicate instrument at the end of a cable where speed must be measured in millimetres per second. The 4-stage ratio range extends the ZL30 from conventional crane hoist duty all the way to laboratory-grade cable positioning \u2014 in one product family. Contact \u039a\u03bf\u03c1\u03ad\u03b1 Ever-Power<\/a> for 4-stage dimensional data at your specific ratio.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

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Field Reports<\/h2>\n
\n
\n
\n
M<\/div>\n
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Martin H. \u2014 Electric Crane Systems Architect<\/div>\n
Verified Purchase \u00b7 Liebherr Campus, Austria \u00b7 May 2026<\/div>\n<\/div>\n
\u2605\u2605\u2605\u2605\u2605<\/div>\n<\/div>\n

All-electric 20 t mobile crane, main hoist, ZL30 at ratio 65, paired with a 200 kW PMSM motor and VFD. The hoist noise reduction compared to our hydraulic baseline was exactly what the ZL30 data sheet predicted: 10 dB(A) lower at the operator station. Regen braking recovers 19% of the lowering energy to the battery \u2014 extending the crane battery range by approximately 12% over a typical construction day cycle. The 75,500 Nm peak handled every grab-release and snatch-load event during our 6-month field trial without any vibration anomaly or oil temperature excursion. We are standardising the ZL30 across the electric crane product line.<\/p>\n<\/div>\n

\n
\n
\u03a5<\/div>\n
\n
Yuki S. \u2014 Electric Marine Winch Designer<\/div>\n
Verified Purchase<\/div>\n<\/div>\n
\u2605\u2605\u2605\u2605\u2605<\/div>\n<\/div>\n

All-electric mooring winch on a hybrid-electric coastal ferry. ZL30 at ratio 120, 75 kW AC induction motor. The winch eliminated the hydraulic power unit that occupied 2.4 m\u00b2 of engine room floor space and 180 kg of weight. The ZL30 plus motor total weight is 95 kg less than the previous hydraulic winch assembly. The IP67+ sealing has survived 14 months of salt water deck wash without any seal degradation. Mooring line snatch loads during berthing in crosswinds \u2014 measured at 2.3x steady-state \u2014 were absorbed within the ZL30 peak capacity without any audible or tactile indication of stress. The ferry operator is converting all 4 mooring winches to ZL30 during the next dry-dock.<\/p>\n<\/div>\n

\n
\n
\u03bc\u03b5\u03b3\u03ac\u03bb\u03bf<\/div>\n
\n
Lena B. \u2014 Automated Warehouse Systems Engineer<\/div>\n
Verified Purchase \u00b7 June 2026<\/div>\n<\/div>\n
\u2605\u2605\u2605\u2605\u2606<\/div>\n<\/div>\n

Automated overhead hoist in a heavy-parts warehouse, ZL30 at ratio 400 (4-stage), 30 kW PMSM servo motor. The hoist positions 5-tonne engine blocks onto machining fixtures at 0.5 mm accuracy \u2014 measured by laser tracker, confirmed over 2,000 placement cycles. The DIN 5-6 gear accuracy preserves the motor encoder resolution through the 4-stage reduction, which is essential for our closed-loop position control. The 4-star is a dimensional observation: the 4-stage ZL30 is approximately 40 mm longer axially than the 2-stage at the same housing diameter, which required a minor drum housing modification on our existing hoist frame. Having the per-stage dimensional addition published in the catalogue data sheet would have caught this during the specification phase.<\/p>\n<\/div>\n<\/div>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"

The winch drive catalogue splits in two here. Everything below \u2014 the 4xxW series from 870 to 330,000 Nm \u2014 was engineered for hydraulic motors at 1,000-3,500 rpm with straight-cut gears, integrated brakes, and FEM M5\/M6 continuous ratings. The EP-ZL30 opens the second architecture: a winch drive planetary gearbox built for high-speed electric motors at 4,000 rpm, with helical gears for 40% lower noise, DIN 5-6 precision for encoder-compatible positioning, IP67+ sealing for washdown environments, and a 2.8:1 peak-to-continuous ratio (75,500 \/ 27,000 Nm) that absorbs shock loads the equivalent 4xxW model would not survive. From ratio 4 in single-stage to 1,259 in four-stage, the ZL30 spans a 315:1 speed range \u2014 making the widest-ranging 4xxW model (the 406AW at 23-220) look narrow by comparison.<\/div>","protected":false},"featured_media":1012,"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-1011","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\/el\/wp-json\/wp\/v2\/product\/1011","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/planetary-gearboxes.com\/el\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/planetary-gearboxes.com\/el\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/el\/wp-json\/wp\/v2\/comments?post=1011"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/el\/wp-json\/wp\/v2\/media\/1012"}],"wp:attachment":[{"href":"https:\/\/planetary-gearboxes.com\/el\/wp-json\/wp\/v2\/media?parent=1011"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/el\/wp-json\/wp\/v2\/product_brand?post=1011"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/el\/wp-json\/wp\/v2\/product_cat?post=1011"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/el\/wp-json\/wp\/v2\/product_tag?post=1011"}],"curies":[{"name":"\u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}