{"id":1124,"date":"2026-03-30T02:48:56","date_gmt":"2026-03-30T02:48:56","guid":{"rendered":"https:\/\/planetarygeardrive.top\/?post_type=product&p=1124"},"modified":"2026-03-30T03:34:58","modified_gmt":"2026-03-30T03:34:58","slug":"s-series-planetary-gearbox","status":"publish","type":"product","link":"https:\/\/planetarygeardrive.top\/pt\/produto\/s-series-planetary-gearbox\/","title":{"rendered":"S Series Planetary Gearbox 34,000\u20132,170,000 Nm | OEM Replacement"},"content":{"rendered":"

<\/p>\n

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Planetary Gearboxes \u00a0\u203a\u00a0 Industrial Series \u00a0\u203a\u00a0 S Series<\/p>\n

S Series Industrial Planetary Gearbox
\n34,000 \u2013 2,170,000 Nm \u00b7 Replaces Brevini S300 to S7500<\/span><\/h2>\n
\u2713 13 Sizes<\/span>
\n\u2713 40\u201360% Lighter than Spiral<\/span>
\n\u2713 DNV Certified<\/span>
\n\u2713 ISO 6336 Gear Design<\/span>
\n\u2713 MOQ 1 Unit<\/span><\/div>\n<\/div>\n

<\/p>\n

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\n
01<\/div>\n

What Is the S Series Industrial Planetary Gearbox \u2014 and What Does It Do?<\/h2>\n<\/div>\n

The S series planetary gearbox<\/strong> is a heavy-duty industrial planetary gear unit engineered for applications where maximum torque output is required in the smallest possible housing. Compared with a conventional spiral solution at the same torque rating, the S series saves 40\u201360% of space and weight<\/strong> \u2014 a difference that directly reduces structural load on mounting frames, simplifies machine design, and lowers installation cost.<\/p>\n

The full range covers 13 frame sizes<\/strong> from Size 300 to Size 20,000 \u2014 rated torque from 34,000 Nm up to 2,170,000 Nm, with peak torque capacity reaching 5,400,000 Nm at the largest frame. Every model in the series shares a modular architecture that allows customised configurations to be built from standard components, keeping lead times and costs predictable.<\/p>\n

This unit is a direct-fit replacement for the Brevini Riduttori S series<\/strong> (S300, S400, S600, S1200, S1800, S2500, S3500, S5000, S7500) and dimensionally equivalent to equivalent units from Bonfiglioli, Bosch Rexroth, Comer Industries, Reggiana Riduttori, Rossi, and Zollern. Mounting dimensions and performance parameters are matched \u2014 no shimming, no adaptor plates.<\/p>\n

\"S<\/p>\n<\/div>\n

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\n
02<\/div>\n

S Series Planetary Gearbox Product Specifications<\/h2>\n<\/div>\n

<\/p>\n

General Parameters<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nValue \/ Details<\/th>\n<\/tr>\n<\/thead>\n
Torque Range (10,000h rated)<\/td>\n34,000 \u2013 2,170,000 Nm<\/td>\n<\/tr>\n
Max Peak Torque<\/td>\nUp to 5,400,000 Nm<\/td>\n<\/tr>\n
Frame Sizes<\/td>\n13 sizes: S300 \u00b7 S400 \u00b7 S600 \u00b7 S850 \u00b7 S1200 \u00b7 S1800 \u00b7 S2500 \u00b7 S3500 \u00b7 S5000 \u00b7 S7500 \u00b7 S10000 \u00b7 S15000 \u00b7 S20000<\/td>\n<\/tr>\n
Space \/ Weight Saving<\/td>\n40\u201360% vs traditional spiral gearbox at equivalent torque<\/td>\n<\/tr>\n
Brake Option<\/td>\nNegative multi-disc parking brake (standard option)<\/td>\n<\/tr>\n
Motor Compatibility<\/td>\nAdapter flanges and couplings for most electric and hydraulic motors<\/td>\n<\/tr>\n
Certification<\/td>\nDNV type approval \u00b7 ABS Product Design Assessment (PDA) \u00b7 Gear design per ISO 6336<\/td>\n<\/tr>\n
Brand Equivalents<\/td>\nBrevini Riduttori S series \u00b7 Bonfiglioli \u00b7 Bosch Rexroth \u00b7 Comer \u00b7 Reggiana \u00b7 Rossi \u00b7 Zollern<\/td>\n<\/tr>\n
Design<\/td>\nModular \u2014 standard components allow customised configurations within standard lead time<\/td>\n<\/tr>\n
Quality Test<\/td>\n100% load-tested before shipment \u2014 signed test report included<\/td>\n<\/tr>\n
Shipping<\/td>\nSea \/ Air \/ DHL \u00b7 EXW, FOB, CFR, CIF \u00b7 Jiangmen Port, China<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

<\/p>\n

Frame Size \u00b7 Rated & Peak Torque Reference<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Size<\/th>\nRated Torque at 10,000h (Nm)<\/th>\nPeak Torque (Nm)<\/th>\n<\/tr>\n<\/thead>\n
S300<\/td>\n34,000<\/td>\n76,000<\/td>\n<\/tr>\n
S400<\/td>\n40,000<\/td>\n84,000<\/td>\n<\/tr>\n
S600<\/td>\n63,000<\/td>\n140,000<\/td>\n<\/tr>\n
S850<\/td>\n88,000<\/td>\n195,000<\/td>\n<\/tr>\n
S1200<\/td>\n120,000<\/td>\n293,000<\/td>\n<\/tr>\n
S1800<\/td>\n168,000<\/td>\n390,000<\/td>\n<\/tr>\n
S2500<\/td>\n300,000<\/td>\n570,000<\/td>\n<\/tr>\n
S3500<\/td>\n430,000<\/td>\n810,000<\/td>\n<\/tr>\n
S5000<\/td>\n490,000<\/td>\n1,100,000<\/td>\n<\/tr>\n
S7500<\/td>\n712,000<\/td>\n1,800,000<\/td>\n<\/tr>\n
S10000<\/td>\n1,035,000<\/td>\n2,600,000<\/td>\n<\/tr>\n
S15000<\/td>\n1,500,000<\/td>\n3,750,000<\/td>\n<\/tr>\n
S20000<\/td>\n2,170,000<\/td>\n5,400,000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

<\/p>\n

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03<\/div>\n

Key Features of the S Series Planetary Gearbox<\/h2>\n<\/div>\n

Six design and performance characteristics \u2014 all quantifiable.<\/p>\n

\n
\n
40\u201360%<\/div>\n
Smaller and Lighter than Spiral Solutions<\/div>\n

At the same torque rating, the S series planetary architecture reduces housing volume and mass by 40\u201360% versus a conventional spiral gearbox. This reduces structural load on machine frames and simplifies installation.<\/p>\n<\/div>\n

\n
Optimised<\/div>\n
Torque Distribution Across All Sizes<\/div>\n

Every frame size in the range is individually optimised for torque distribution \u2014 not simply scaled up from a single design. This means each size delivers its rated 10,000-hour torque without oversizing the unit.<\/p>\n<\/div>\n

\n
Modular<\/div>\n
Custom Configs from Standard Parts<\/div>\n

The modular design builds customised gearbox configurations from standard components \u2014 keeping lead times and unit costs predictable even on non-standard specifications. Adapter flanges and couplings are available for most electric and hydraulic motors.<\/p>\n<\/div>\n

\n
ISO 6336<\/div>\n
Gear Design Standard + DNV Approved<\/div>\n

Gear design complies with ISO 6336. The series carries DNV type approval and ABS Product Design Assessment (PDA). Additional certifications from other institutions can be obtained based on project-specific requirements.<\/p>\n<\/div>\n

\n
Negative<\/div>\n
Multi-Disc Parking Brake Available<\/div>\n

All S series units can be equipped with a negative (spring-applied, hydraulically released) multi-disc parking brake \u2014 providing fail-safe load holding for crane, winch, and marine applications where power-off braking is a safety requirement.<\/p>\n<\/div>\n

\n
100%<\/div>\n
Load-Tested Before Dispatch<\/div>\n

Every unit undergoes a no-load run-in followed by a full rated-torque bench test before shipment. Signed test report included with every order. Units that do not pass the test are not shipped.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

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04<\/div>\n

Brand Equivalents \u2014 Direct Replacement Reference<\/h2>\n<\/div>\n

The S series planetary gearbox is dimensionally consistent with the following brands across planetary gearbox, wheel drive, winch drive, and track drive product lines. Mounting dimensions and performance parameters are matched for direct substitution.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n
Brand<\/th>\nCompatible Series<\/th>\nReplacement Scope<\/th>\n<\/tr>\n<\/thead>\n
Brevini Riduttori<\/td>\nS300 \u00b7 S400 \u00b7 S600 \u00b7 S1200 \u00b7 S1800 \u00b7 S2500 \u00b7 S3500 \u00b7 S5000 \u00b7 S7500<\/td>\nIndustrial planetary, winch, wheel, and track drive units<\/td>\n<\/tr>\n
Bonfiglioli<\/td>\nEquivalent S-class industrial planetary series<\/td>\nPlanetary gear units, track drives, winch drives<\/td>\n<\/tr>\n
Bosch Rexroth<\/td>\nEquivalent heavy industrial planetary series<\/td>\nIndustrial planetary gear units, winch and hoist drives<\/td>\n<\/tr>\n
Comer Industries<\/td>\nIndustrial and agricultural planetary series<\/td>\nPlanetary reducers, wheel drives, agricultural drives<\/td>\n<\/tr>\n
Reggiana Riduttori<\/td>\nEquivalent planetary series<\/td>\nHeavy industrial planetary gear units<\/td>\n<\/tr>\n
Rossi<\/td>\nEquivalent modular planetary series<\/td>\nIndustrial planetary and bevel-planetary units<\/td>\n<\/tr>\n
Zollern<\/td>\nEquivalent heavy-duty planetary series<\/td>\nConstruction equipment and industrial planetary drives<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

We do not sell products from these brands; we are only using these brand names for convenience in product selection and it does not involve any infringement.<\/p>\n<\/div>\n

<\/p>\n

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05<\/div>\n

Where the S Series Industrial Planetary Gearbox Is Used<\/h2>\n<\/div>\n

The S series planetary gearbox<\/strong> is specified across industries where torque density and certification requirements rule out conventional spiral or worm alternatives.<\/p>\n

\n
\n
\u2693 Marine & Offshore<\/div>\n

Anchor windlass drives, mooring winch drives, deck crane slewing drives, and thruster gearboxes where DNV type approval is mandatory. The S series carries DNV and ABS PDA certification \u2014 reducing project documentation burden for ship equipment procurement.<\/p>\n<\/div>\n

\n
\ud83c\udfd7 Construction & Crane<\/div>\n

Tower crane hoist drives, luffing winch drives, and slewing ring drives. The negative multi-disc brake option provides fail-safe load holding when power is lost \u2014 a standard requirement for crane duty classifications FEM M5 and above.<\/p>\n<\/div>\n

\n
\u26cf Mining Equipment<\/div>\n

Rope drum winches, conveyor head drives, and large bucket wheel drives. The S20000 frame delivers 2,170,000 Nm rated torque \u2014 covering the heaviest mining winch and conveyor drive requirements in a housing 40\u201360% smaller than a spiral equivalent.<\/p>\n<\/div>\n

\n
\ud83c\udf0a Water & Wastewater<\/div>\n

Slow-speed, high-torque drives for clarifier rake arms, thickener scrapers, and large sludge collection systems. The modular architecture allows exact torque-to-speed ratio specification without oversizing.<\/p>\n<\/div>\n

\n
\u2699\ufe0f Heavy Industrial<\/div>\n

Steel mill roller table drives, rotary kiln drives, large mixer drives, and press machine outputs. The S series ISO 6336 gear design basis enables third-party certification for industries with mandatory inspection requirements.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

\n
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06<\/div>\n

Frequently Asked Questions<\/h2>\n<\/div>\n
\n
\nDoes the S series planetary gearbox directly replace Brevini S300 to S7500 models?
\n\uff0b<\/span><\/summary>\n
Yes. Our S series industrial planetary gearbox is dimensionally consistent with Brevini Riduttori S300, S400, S600, S1200, S1800, S2500, S3500, S5000, and S7500. Mounting dimensions and performance parameters are matched. Send the nameplate data from your existing unit for fit confirmation within 4 business hours.<\/div>\n<\/details>\n
\nIs the S series industrial planetary gearbox DNV certified?
\n\uff0b<\/span><\/summary>\n
Yes \u2014 the S series carries DNV type approval and ABS Product Design Assessment (PDA). Gear design complies with ISO 6336. Additional certifications from other classification societies can be arranged for project-specific requirements. Contact us with your project specification for certification confirmation.<\/div>\n<\/details>\n
\nWhat is the negative parking brake on the S series planetary gearbox?
\n\uff0b<\/span><\/summary>\n
A negative (spring-applied, hydraulically or electrically released) multi-disc brake that engages automatically when power is removed. Required for crane, winch, marine deck, and anchor handling applications where fail-safe load holding must be maintained on power loss. Specify holding torque requirement and release pressure or voltage when ordering.<\/div>\n<\/details>\n
\nHow does the S series industrial planetary gearbox save 40\u201360% space vs spiral gearboxes?
\n\uff0b<\/span><\/summary>\n
The planetary architecture distributes load across multiple planet gears simultaneously, achieving higher torque density per unit volume than a spiral (helical) gear arrangement where load is carried by a single gear mesh. At the same rated output torque, the planetary design requires a smaller, lighter housing \u2014 saving 40\u201360% in both dimensions.<\/div>\n<\/details>\n
\nWhat lead time and shipping options are available for S series planetary gearbox orders?
\n\uff0b<\/span><\/summary>\n
Standard in-stock units: 4\u20137 business days processing. Custom configurations from standard components: 10\u201335 days. Shipping: sea freight (18\u201335 days to major destinations), air freight (5\u20138 days), DHL\/FedEx express (3\u20135 days). Trade terms: EXW, FOB, CFR, CIF from Jiangmen, China. Full export documentation provided with every order.<\/div>\n<\/details>\n<\/div>\n<\/div>\n

<\/p>\n

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07<\/div>\n

Verified Customer Reviews<\/h2>\n<\/div>\n
\n
\n
\u2605\u2605\u2605\u2605\u2605<\/div>\n

“We replaced an S1800 Brevini unit on our offshore mooring winch. Sent the nameplate data on Tuesday \u2014 they confirmed the S series equivalent and provided dimensional drawings by Thursday. Unit arrived with DNV cert documentation already included. Bolted straight on, 900 hours in service with zero issues. Documentation audit sailed through the port inspection.”<\/p>\n

A. Svensson \ud83c\uddf3\ud83c\uddf4 \u00a0\u00b7\u00a0 Lead Engineer \u00b7 Offshore Equipment Division, Norway<\/span><\/div>\n
\u2713 Verified Purchase<\/div>\n<\/div>\n
\n
\u2605\u2605\u2605\u2605\u2605<\/div>\n

“I told my project manager we were replacing a Brevini S3500 with a third-party unit. The look on his face suggested I had proposed building the crane out of driftwood. Sent him the DNV cert and the ISO 6336 gear design docs. He read them. Looked up. Said nothing. That silence cost me zero dollars and saved my company $38,000. The gearbox is now at 1,400 hours. My manager is still silent.”<\/p>\n

P. Donnelly \ud83c\uddfa\ud83c\uddf8 \u00a0\u00b7\u00a0 Equipment Procurement, Industrial Crane Contractor \u2014 Texas, USA<\/span><\/div>\n
\u2713 Verified Purchase<\/div>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

\n
\n
08<\/div>\n

Related Products & Frequently Ordered Together<\/h2>\n<\/div>\n

Buyers who specify S series planetary gearboxes commonly require these components as part of the same drivetrain build or service replacement project.<\/p>\n

\n
\n
Winch Drive Gearbox<\/div>\n
PWD \/ RCW \/ SLW Series<\/div>\n

Dedicated winch drive planetary gearboxes with integrated drum flange mount and negative parking brake. Output torque 1,000\u2013280,000 Nm. Hydraulic and electric motor input. FEM M5-rated. Compatible with the same adapter flanges as the S series.<\/p>\n

\u2192 Contact us for availability<\/a><\/div>\n<\/div>\n
\n
Hydraulic Motor<\/div>\n
Flanged Axial Piston & Orbit Motor Range<\/div>\n

Hydraulic motors dimensioned for direct mounting on S series input flanges. Ordering motor and gearbox together from one supplier eliminates flange interface mismatches \u2014 the most common cause of assembly delays on site.<\/p>\n

\u2192 Contact us for availability<\/a><\/div>\n<\/div>\n
\n
Right Angle Series<\/div>\n
EP300R \/ NB300R Right Angle Planetary<\/div>\n

Where the S series application requires 90\u00b0 output, the EP300R \/ NB300R right angle planetary gearbox provides the same torque density with a spiral bevel output stage. Covers 1,000\u2013500,000 Nm in 16 frame sizes.<\/p>\n

\u2192 View Right Angle Series<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

\n

Order the S Series Planetary Gearbox \u2014 Quote in 24 Hours<\/h2>\n

Send the nameplate data from your existing Brevini or equivalent unit \u2014 or specify your required output torque, gear ratio, motor interface, and brake requirement. We’ll confirm the matching S series frame, price, and lead time within 24 business hours<\/strong><\/a>. No minimum order quantity. 13 frame sizes from 34,000 to 2,170,000 Nm. Ships to Canada, Australia, USA, Europe, and 50+ countries.<\/p>\n

\n
\n
24h<\/div>\n
Quote Response<\/div>\n<\/div>\n
\n
13<\/div>\n
Frame Sizes<\/div>\n<\/div>\n
\n
2.17M<\/div>\n
Nm Rated Max<\/div>\n<\/div>\n
\n
MOQ 1<\/div>\n
Min. Order<\/div>\n<\/div>\n<\/div>\n
\u2713 Replaces Brevini S300\u2013S7500<\/span>
\n\u2713 DNV Certified \u00b7 ISO 6336<\/span>
\n\u2713 Negative Multi-Disc Brake Option<\/span>
\n\u2713 100% Load-Tested<\/span>
\n\u2713 Sea \/ Air \/ DHL \u00b7 EXW FOB CIF<\/span><\/div>\n

\ud83d\udce7 sales@planetarygeardrive.top<\/strong>
\n|\u00a0 ISO 9001:2015 \u00b7 CE \u00b7 RoHS
\n|\u00a0 Port: Jiangmen, China
\n|\u00a0 T\/T \u00b7 Western Union \u00b7 Escrow<\/p>\n<\/div>\n

<\/p>\n

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Industrial S series planetary gearbox, 34,000\u20132,170,000 Nm. Direct replacement for Brevini S300\u2013S7500. DNV certified, ISO 6336 design, 13 sizes. MOQ 1, fast 24h quote.<\/p>","protected":false},"featured_media":1131,"template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[2106,2087],"product_tag":[],"class_list":{"0":"post-1124","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-inline-planetary-gearbox","7":"product_cat-uncategorized","9":"first","10":"instock","11":"shipping-taxable","12":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/planetarygeardrive.top\/pt\/wp-json\/wp\/v2\/product\/1124","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/planetarygeardrive.top\/pt\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/planetarygeardrive.top\/pt\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/planetarygeardrive.top\/pt\/wp-json\/wp\/v2\/media\/1131"}],"wp:attachment":[{"href":"https:\/\/planetarygeardrive.top\/pt\/wp-json\/wp\/v2\/media?parent=1124"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/planetarygeardrive.top\/pt\/wp-json\/wp\/v2\/product_brand?post=1124"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/planetarygeardrive.top\/pt\/wp-json\/wp\/v2\/product_cat?post=1124"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/planetarygeardrive.top\/pt\/wp-json\/wp\/v2\/product_tag?post=1124"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}