{"id":871,"date":"2026-06-17T06:07:30","date_gmt":"2026-06-17T06:07:30","guid":{"rendered":"https:\/\/planetary-gearboxes.com\/?post_type=product&p=871"},"modified":"2026-06-17T06:07:30","modified_gmt":"2026-06-17T06:07:30","slug":"zr07-slewing-drive-planetary-gearbox","status":"publish","type":"product","link":"https:\/\/planetary-gearboxes.com\/zh\/product\/zr07-slewing-drive-planetary-gearbox\/","title":{"rendered":"ZR07 Slewing Drive Planetary Gearbox \u2014 Right-Angle Bevel-Planetary, 2-4 Stage"},"content":{"rendered":"
\n

<\/p>\n

\n

EP-ZR07 Mid-Range Slewing Drive \u2014 5,000 Nm in a Compact Envelope<\/h2>\n
\n
\n

\u8fd9 EP-ZR07 slewing drive planetary gearbox<\/strong> fills the critical torque gap in the ZR slewing drive series<\/a> between the light-duty ZR03 (2,500 Nm) and the heavy-duty ZR10 (11,500 Nm). At 5,000 Nm continuous and 11,000 Nm peak, the ZR07 handles the workload of medium excavators, concrete pump boom mechanisms, and marine deck equipment without the weight and cost penalty of oversizing to the ZR10 frame.<\/p>\n

The ZR07 ratio architecture concentrates its 24 options in the 3-stage and 4-stage configurations, with the 4-stage offering 18 ratios from 99.67 to 430.22. This density of choice in the high-ratio region makes the ZR07 particularly well-suited to applications where precise speed matching is important \u2014 a nearby ratio means a smaller motor can be used, reducing both the drive package cost and the electrical infrastructure requirement.<\/p>\n

\n
\n
5,000<\/div>\n
Rated Nm<\/div>\n<\/div>\n
\n
11,000<\/div>\n
Peak Nm<\/div>\n<\/div>\n
\n
24<\/div>\n
\u6bd4\u7387<\/div>\n<\/div>\n
\n
2-4<\/div>\n
\u9636\u6bb5<\/div>\n<\/div>\n<\/div>\n
IP67 Sealed<\/span>
\nDIN 5-6<\/span>
\n-40 to +80 deg C<\/span>
\n3,500 RPM Max<\/span><\/div>\n<\/div>\n
\"ZR07<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

\n

ZR07 Technical Parameters \u2014 24 Ratio Configurations<\/h2>\n

Continuous torque at N2 x h = 100,000 hours. The ZR07 offers a single 2-stage ratio (7.96) for maximum-speed applications, five 3-stage ratios for medium-speed duty, and eighteen 4-stage ratios for high-reduction, low-speed positioning.<\/p>\n

2-Stage \u2014 ZR07**2 (1 Ratio)<\/h3>\n
\n\n\n\n\n\n
\u6bd4\u7387<\/th>\nCont. Torque (Nm)<\/th>\nMax. Torque (Nm)<\/th>\nMax RPM<\/th>\nPt F\/M (kW)<\/th>\n<\/tr>\n<\/thead>\n
7.96<\/td>\n5,000<\/td>\n11,000<\/td>\n3,500<\/td>\n10.5 \/ 12.0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

3-Stage \u2014 ZR07**3 (5 Ratios)<\/h3>\n
\n\n\n\n\n\n\n\n\n\n
\u6bd4\u7387<\/th>\nCont. Torque (Nm)<\/th>\nMax. Torque (Nm)<\/th>\nMax RPM<\/th>\nPt F\/M (kW)<\/th>\n<\/tr>\n<\/thead>\n
28.64<\/td>\n5,000<\/td>\n11,000<\/td>\n3,500<\/td>\n7.5 \/ 9.0<\/td>\n<\/tr>\n
33.81<\/td>\n5,000<\/td>\n11,000<\/td>\n3,500<\/td>\n7.5 \/ 9.0<\/td>\n<\/tr>\n
42.41<\/td>\n5,000<\/td>\n11,000<\/td>\n3,500<\/td>\n7.5 \/ 9.0<\/td>\n<\/tr>\n
49.32<\/td>\n5,000<\/td>\n11,000<\/td>\n3,500<\/td>\n7.5 \/ 9.0<\/td>\n<\/tr>\n
59.67<\/td>\n4,050<\/td>\n9,000<\/td>\n3,500<\/td>\n7.5 \/ 9.0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

4-Stage \u2014 ZR07**4 (18 Ratios)<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u6bd4\u7387<\/th>\nCont. Torque (Nm)<\/th>\nMax. Torque (Nm)<\/th>\nMax RPM<\/th>\nPt F\/M (kW)<\/th>\n<\/tr>\n<\/thead>\n
99.67<\/td>\n5,000<\/td>\n11,000<\/td>\n3,500<\/td>\n6.5 \/ 7.5<\/td>\n<\/tr>\n
117.67<\/td>\n5,000<\/td>\n11,000<\/td>\n3,500<\/td>\n6.5 \/ 7.5<\/td>\n<\/tr>\n
122.01<\/td>\n5,000<\/td>\n11,000<\/td>\n3,500<\/td>\n6.5 \/ 7.5<\/td>\n<\/tr>\n
144.04<\/td>\n5,000<\/td>\n11,000<\/td>\n3,500<\/td>\n6.5 \/ 7.5<\/td>\n<\/tr>\n
147.57<\/td>\n5,000<\/td>\n11,000<\/td>\n3,500<\/td>\n6.5 \/ 7.5<\/td>\n<\/tr>\n
165.26<\/td>\n5,000<\/td>\n11,000<\/td>\n3,500<\/td>\n6.5 \/ 7.5<\/td>\n<\/tr>\n
171.66<\/td>\n5,000<\/td>\n11,000<\/td>\n3,500<\/td>\n6.5 \/ 7.5<\/td>\n<\/tr>\n
180.65<\/td>\n5,000<\/td>\n11,000<\/td>\n3,500<\/td>\n6.5 \/ 7.5<\/td>\n<\/tr>\n
195.10<\/td>\n4,050<\/td>\n9,000<\/td>\n3,500<\/td>\n6.5 \/ 7.5<\/td>\n<\/tr>\n
206.51<\/td>\n4,050<\/td>\n9,000<\/td>\n3,500<\/td>\n6.5 \/ 7.5<\/td>\n<\/tr>\n
210.13<\/td>\n4,050<\/td>\n9,000<\/td>\n3,500<\/td>\n6.5 \/ 7.5<\/td>\n<\/tr>\n
243.79<\/td>\n4,050<\/td>\n9,000<\/td>\n3,500<\/td>\n6.5 \/ 7.5<\/td>\n<\/tr>\n
254.19<\/td>\n4,050<\/td>\n9,000<\/td>\n3,500<\/td>\n6.5 \/ 7.5<\/td>\n<\/tr>\n
284.62<\/td>\n3,500<\/td>\n7,700<\/td>\n3,500<\/td>\n6.5 \/ 7.5<\/td>\n<\/tr>\n
305.74<\/td>\n3,500<\/td>\n7,700<\/td>\n3,500<\/td>\n6.5 \/ 7.5<\/td>\n<\/tr>\n
344.30<\/td>\n3,500<\/td>\n7,700<\/td>\n3,500<\/td>\n6.5 \/ 7.5<\/td>\n<\/tr>\n
355.65<\/td>\n3,500<\/td>\n7,700<\/td>\n3,500<\/td>\n6.5 \/ 7.5<\/td>\n<\/tr>\n
430.22<\/td>\n3,500<\/td>\n7,700<\/td>\n3,500<\/td>\n6.5 \/ 7.5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n

<\/p>\n

\n

Duty Cycle Classification \u2014 Matching the ZR07 to Your Operating Profile<\/h2>\n

The published 5,000 Nm rating assumes IEC duty type S1 (continuous duty at constant load). Real slewing applications rarely operate at S1 \u2014 most follow intermittent or cyclical profiles that can either increase or decrease the effective load on the gearbox. Matching the correct service factor prevents both undersizing (premature failure) and oversizing (unnecessary cost).<\/p>\n

\n\n\n\n\n\n\n\n\n\n
Application Type<\/th>\nIEC Duty Class<\/th>\nService Factor<\/th>\nEffective ZR07 Capacity<\/th>\n<\/tr>\n<\/thead>\n
Conveyor turntable, constant speed<\/td>\nS1<\/td>\n1.0<\/td>\n5,000 Nm<\/td>\n<\/tr>\n
Crane slewing, 40% ED<\/td>\nS3<\/td>\n0.8<\/td>\n6,250 Nm<\/td>\n<\/tr>\n
Excavator slewing, frequent reversals<\/td>\nS5<\/td>\n1.25<\/td>\n4,000 Nm<\/td>\n<\/tr>\n
Concrete pump boom, start-stop<\/td>\nS4<\/td>\n1.1<\/td>\n4,545 Nm<\/td>\n<\/tr>\n
Heavy shock, rock crusher feed<\/td>\nS7\/S8<\/td>\n1.5-1.75<\/td>\n2,860-3,330 Nm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Effective capacity = Rated torque \/ Service factor. A service factor below 1.0 (intermittent duty with cooling periods between cycles) means the gearbox can handle more than its continuous rating because it has time to dissipate heat. A factor above 1.0 (frequent reversals, shock loads) means the effective usable torque must be reduced. If your application falls into the S5-S8 range and the effective capacity is marginal, move up to the ZR10 frame (11,500 Nm rated).<\/p>\n<\/section>\n

<\/p>\n

\n

Brake Selection \u2014 Matching Holding Torque to Wind Loads and Payload<\/h2>\n

Spring-applied fail-safe brakes are required whenever the slewing mechanism must hold position during power loss \u2014 cranes, aerial platforms, concrete pump booms, and any application where an uncontrolled rotation would endanger personnel or equipment. The ZR07 offers six brake options spanning a wide range of holding torques.<\/p>\n

\n
\n
\n\n\n\n\n\n\n\n\n\n\n
Brake Code<\/th>\nStatic Holding Torque<\/th>\nTypical Application<\/th>\n<\/tr>\n<\/thead>\n
B12<\/td>\n12 Nm (input side)<\/td>\nLight turntables, indoor positioners<\/td>\n<\/tr>\n
B22<\/td>\n22 Nm (input side)<\/td>\nSolar trackers, antenna pedestals<\/td>\n<\/tr>\n
B510<\/td>\n510 Nm (output side)<\/td>\nConcrete pump booms, light cranes<\/td>\n<\/tr>\n
B515<\/td>\n515 Nm (output side)<\/td>\nMedium cranes, aerial platforms<\/td>\n<\/tr>\n
B610<\/td>\n610 Nm (output side)<\/td>\nExcavators, marine deck cranes<\/td>\n<\/tr>\n
B615<\/td>\n615 Nm (output side)<\/td>\nHeavy-duty applications, wind-exposed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
Sizing Rule: <\/span>
\nThe brake holding torque (reflected to the output through the gear ratio) must exceed the maximum wind-overturning torque at the slewing output by a factor of at least 1.5. For input-side brakes (B12, B22), multiply the brake holding torque by the gear ratio to get the equivalent output holding torque, then apply the 1.5 safety factor.<\/span><\/div>\n<\/div>\n
\"Korea<\/p>\n

DIN 5-6 precision gear grinding for consistent mesh quality<\/p>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

\n

Targeted for the 3,500-5,000 Nm Operating Window<\/h2>\n

\"Slewing<\/p>\n

\n
\n

Medium Excavators (15-20 Tonne Class)<\/h3>\n

Hydraulic excavators in the 15-20 tonne operating weight range generate upper-structure slewing torques of 3,000-5,000 Nm during standard digging cycles. The ZR07**2 at ratio 7.96 driven by a 63-80 cc\/rev axial piston motor at 250 bar delivers the speed and torque density these compact machines require, while the 11,000 Nm peak handles the aggressive operator inputs common in demolition and rock-breaking applications.<\/p>\n<\/div>\n

\n

Concrete Pump Boom Rotation<\/h3>\n

Truck-mounted concrete pump booms with 32-42 metre reach generate slewing torques of 2,500-4,500 Nm during pouring operations with the boom partially extended. The ZR07**3 at ratios 33:1-49:1 with a B510 fail-safe brake provides smooth, controlled rotation during pour placement and secure holding when the boom is parked between pours. The IP67 sealing resists concrete splatter and pressure-washer cleaning.<\/p>\n<\/div>\n

\n

Marine Deck Cranes and Davit Mechanisms<\/h3>\n

Ship-mounted deck cranes and lifeboat davit slewing mechanisms operate in permanent salt spray, thermal cycling, and vessel motion environments. The ZR07**4 at ratios 99:1-180:1 provides the controlled low-speed slewing these marine applications demand, while the right-angle output geometry<\/a> integrates cleanly into the tight mechanical envelopes typical of shipboard crane pedestals. The zinc phosphate and polyurethane coating system provides ISO 12944 C4 corrosion protection.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

\n

\u76f8\u5173\u4ea7\u54c1<\/h2>\n
\n
\"SE400T1<\/p>\n
\n

Track Drive Planetary Gearboxes \u2192<\/a><\/h3>\n

EP-SE series for crawler undercarriage propulsion on the same 15-20 tonne excavators that use the ZR07 for upper-structure slewing.<\/p>\n<\/div>\n<\/div>\n

\n
\n

\"EP-ADS\u7cfb\u5217\u76f4\u5217\u5f0f\u884c\u661f\u9f7f\u8f6e\u7bb11\"<\/h3>\n

High-Precision Planetary Gearboxes \u2192<\/a><\/h3>\n

EP-ZD round-flange series for concrete pump boom luffing mechanisms, winch positioning drives, and davit rotation servo systems.<\/p>\n<\/div>\n<\/div>\n

\"Agricultural<\/p>\n
\n

Agricultural and Marine Bevel Gearboxes \u2192<\/a><\/h3>\n

Right-angle bevel stages for marine auxiliary drives, deck equipment rotation, and shipboard material handling installations.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

\n

\u5e38\u89c1\u95ee\u9898\u89e3\u7b54<\/h2>\n
\n
\n

Why does the ZR07 2-stage have only one ratio while the ZR06 2-stage has five?<\/h3>\n

The ZR07 uses a different internal gear geometry optimised for the 5,000 Nm torque class. At this load level, the bevel input stage and first planetary stage are larger, leaving less dimensional freedom for the second planetary stage to vary its ratio. The single 2-stage ratio (7.96) represents the one gear combination that meets both the torque requirement and the housing envelope constraint. For applications requiring a 2-stage ratio other than 7.96, the ZR06 (lower torque) or ZR10 (higher torque) may offer a better match.<\/p>\n<\/div>\n

\n

How does the ZR07 compare to the ZR06 for the same application?<\/h3>\n

The ZR06 and ZR07 share the same 4,000-5,000 Nm torque class but differ in their internal architecture. The ZR06 offers 40 ratio options (wider flexibility) while the ZR07 offers 24 options with a different ratio set. In many applications, both frames will have a suitable ratio. The choice then comes down to which ratio is closer to the calculated optimum, which affects motor sizing and energy consumption. Contact our engineering team<\/a> with your target ratio and we will recommend the frame that provides the closest match.<\/p>\n<\/div>\n

\n

Is the ZR07 approved for marine classification (DNV, Lloyd, BV)?<\/h3>\n

The standard ZR07 is manufactured under ISO 9001:2015 with full material traceability. For marine applications requiring classification society approval, we supply units with witnessed material testing, witnessed factory load testing, and the documentation package needed for type approval. Lead time for classification-witnessed units is typically 8-12 weeks. Specify the classification society and notation required at the time of enquiry.<\/p>\n<\/div>\n

\n

What happens if the brake engages during rotation?<\/h3>\n

Spring-applied brakes on the ZR07 are designed as holding brakes, not dynamic (friction) brakes. Engaging the brake while the output shaft is rotating will cause rapid wear of the brake disc and generate heat that can damage the brake housing and adjacent seals. The hydraulic or electrical control system must ensure that motor speed is reduced to zero (or near zero) before the brake engages. For applications requiring controlled deceleration, use the motor or VFD for dynamic braking and the spring-applied brake only for final static holding.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

\n

Customer Feedback<\/h2>\n
\n
\n
\n
R<\/div>\n
\n
Robert F. \u2014 Plant Equipment Manager<\/div>\n
Verified Purchase \u00b7 Queensland, Australia \u00b7 May 2026<\/div>\n<\/div>\n
\u2605\u2605\u2605\u2605\u2605<\/div>\n<\/div>\n

Concrete pump fleet, 8 units with ZR07**3 at 42.41 ratio. We have been running them for about a year across multiple sites. The B510 brakes work reliably and the IP67 housing handles the daily concrete splatter and pressure-wash cleaning without any issues. One unit got buried in wet concrete up to the mounting flange when a hose burst \u2014 cleaned it off and it kept running. Could not say that about the previous drives.<\/p>\n<\/div>\n

\n
\n
K<\/div>\n
\n
Kim S. \u2014 Naval Architect<\/div>\n
Verified Purchase<\/div>\n<\/div>\n
\u2605\u2605\u2605\u2605\u2605<\/div>\n<\/div>\n

Deck crane slewing drive planetary gearbox<\/strong> for a 65-metre offshore supply vessel. Specified ZR07**4 at 147.57 ratio with B610 brake and marine-grade coating. The material certificate package was thorough enough to pass DNV survey on the first submission. Unit has been operating in the North Sea for 7 months without maintenance. The coating is holding up well in the salt environment, though we will monitor the breather valve area closely as that tends to be the first corrosion point on any gearbox at sea.<\/p>\n<\/div>\n

\n
\n
P<\/div>\n
\n
Pavel D. \u2014 Service Technician<\/div>\n
Verified Purchase \u00b7 Jan 2026<\/div>\n<\/div>\n
\u2605\u2605\u2605\u2605\u2606<\/div>\n<\/div>\n

Replacement slewing drive on a 17-tonne excavator. Performance-wise no complaints, the machine swings as well as with the original unit. Installation was straightforward with the BF02 hydraulic flange. The reason for 4 stars is the drain plug position \u2014 on this particular excavator frame layout, the drain plug ends up in a spot that requires removing the belly plate to access for oil changes. A second drain port option on the opposite side of the housing would solve this for about 30% of excavator installations. Overall good value.<\/p>\n<\/div>\n<\/div>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"

The EP-ZR07 is a versatile mid-range slewing drive delivering 5,000 Nm continuous output torque and 11,000 Nm peak across 24 gear ratios from 7.96 to 430 in 2-stage, 3-stage, and 4-stage configurations. Occupying the torque class between the compact ZR03 (2,100 Nm) and the heavy-duty ZR10 (11,500 Nm), the ZR07 serves medium excavator slewing (15-20 tonne class), concrete pump boom rotation, marine deck crane mechanisms, and automated storage carousel drives. Right-angle bevel-planetary architecture with 89-93% efficiency, IP67 FKM sealing, DIN 5-6 gear accuracy, and -40 to +80 deg C operation. Manufactured by Korea Ever-Power to ISO 9001:2015.<\/div>","protected":false},"featured_media":872,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[967],"product_tag":[],"class_list":["post-871","product","type-product","status-publish","has-post-thumbnail","product_cat-slewing-drive-planetary-gearbox","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/planetary-gearboxes.com\/zh\/wp-json\/wp\/v2\/product\/871","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/planetary-gearboxes.com\/zh\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/planetary-gearboxes.com\/zh\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/zh\/wp-json\/wp\/v2\/comments?post=871"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/zh\/wp-json\/wp\/v2\/media\/872"}],"wp:attachment":[{"href":"https:\/\/planetary-gearboxes.com\/zh\/wp-json\/wp\/v2\/media?parent=871"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/zh\/wp-json\/wp\/v2\/product_brand?post=871"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/zh\/wp-json\/wp\/v2\/product_cat?post=871"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/zh\/wp-json\/wp\/v2\/product_tag?post=871"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}