Agricultural and Industrial Bevel Gearboxes \u2192<\/a><\/h3>\nRight-angle bevel stages for grain elevator head drives, feed processing turntables, and outdoor bulk material handling installations.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n
<\/p>\n\n\u0427\u0430\u0441\u0442\u043e \u0437\u0430\u0434\u0430\u0432\u0430\u0435\u043c\u044b\u0435 \u0432\u043e\u043f\u0440\u043e\u0441\u044b<\/h2>\n\n
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What hydraulic motor displacement is typical for the ZR10 in excavator slewing?<\/h3>\n
For a 25-tonne excavator with the ZR10**2 at ratio 9.17, typical hydraulic motor displacement is 80-107 cc\/rev operating at 200-250 bar system pressure. The BF02 input flange accepts most major-brand axial piston motors (Bosch Rexroth A2FM\/A6VM, Eaton\/Danfoss, Kawasaki) without adapter plates. Motor displacement and operating pressure should be verified against the required output torque and the thermal duty cycle specific to the excavator model.<\/p>\n<\/div>\n
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How does the ZR10 handle the repeated start-stop-reverse cycles in excavator slewing?<\/h3>\n
Excavator slewing generates frequent bidirectional torque reversals at rates of 6-12 cycles per minute during digging operations. The ZR10 helical planetary gears distribute reversal loads across three simultaneous gear mesh contacts, reducing the impact stress per tooth compared to spur-gear designs. The 24,500 Nm peak rating (approximately 2.1x the 11,500 Nm continuous rating) provides the transient capacity headroom for aggressive start-stop cycling without accelerated gear or bearing wear.<\/p>\n<\/div>\n
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What maintenance does the ZR10 require on a tower crane operating 2,000 hours per year?<\/h3>\n
At 2,000 hours per year: first oil change at 2,000 hours (end of year 1), then every 4,000 hours (end of year 3, year 5). Check oil level every 500 hours (quarterly). Inspect breather valve every 6 months. Inspect output shaft seal condition at the first annual service. At this duty cycle, seal replacement is not expected within the first 10 years of operation. Full inspection recommended at 20,000 hours (year 10).<\/p>\n<\/div>\n
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Can two ZR10 units be used in a dual-drive slewing arrangement?<\/h3>\n
Yes. Large tower cranes and port equipment commonly use two slewing drives meshing with the same slewing ring from opposite sides to double the available torque and provide redundancy. Both units must use the same gear ratio to ensure equal load sharing. The output pinion module and tooth count must be identical and the mounting geometry must ensure correct centre distance to the slewing ring. Contact our engineering team for dual-drive configuration dimensional verification.<\/p>\n<\/div>\n<\/div>\n<\/section>\n
<\/p>\n\nCustomer Feedback<\/h2>\n\n
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\u0414<\/div>\n
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Daniel K. \u2014 Fleet Manager<\/div>\n
Verified Purchase \u00b7 Johannesburg, South Africa \u00b7 Jan 2026<\/div>\n<\/div>\n
\u2605\u2605\u2605\u2605\u2605<\/div>\n<\/div>\n
We run a fleet of 14 excavators in an open-pit mining operation. Switched to ZR10 slewing drives across the fleet over the last two years. Failure rate went from about one drive replacement per month to zero in the last 11 months. The hydraulic motor mounting is a direct swap with our existing machines, which made the transition painless from a workshop perspective.<\/p>\n<\/div>\n
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\u042f<\/div>\n
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Yuki T. \u2014 Design Engineer<\/div>\n
Verified Purchase<\/div>\n<\/div>\n
\u2605\u2605\u2605\u2605\u2605<\/div>\n<\/div>\n
We specified the ZR10**3 at 46.30 ratio for a new tower crane design. The CAD model data was delivered faster than expected and matched the physical unit within 0.1mm on all critical interfaces. Noise performance surprised us positively. The unit is measurably quieter than the European brand it replaced on our previous model, which helps with urban site noise compliance.<\/p>\n<\/div>\n
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\u0421<\/div>\n
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Stefan R. \u2014 Site Supervisor<\/div>\n
Verified Purchase \u00b7 Bavaria, Germany<\/div>\n<\/div>\n
\u2605\u2605\u2605\u2605\u2606<\/div>\n<\/div>\n
Solid drive, no complaints on performance. We had an issue with the breather valve position on the first batch \u2014 it was on the wrong side for our crane frame layout and we had to fabricate a relocation bracket. Brought this up with the factory and they offered to change the breather location on subsequent orders at no extra cost. Second batch was correct. Product itself is excellent.<\/p>\n<\/div>\n<\/div>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"
The EP-ZR10 is where the ZR slewing drive series crosses into heavy-duty territory. Delivering 11,500 Nm continuous output torque and 24,500 Nm peak across 41 gear ratio configurations from 7.87 to 695, the ZR10 serves tower cranes in the 12-25 tonne lifting class, hydraulic excavators in the 20-30 tonne range, rotary piling rigs, and large ship-loader slewing mechanisms. The bevel-planetary architecture achieves 89-93% efficiency inside an IP67-sealed, DIN 5-6 precision ductile iron housing rated from -40 to +80 deg C. Manufactured by Korea Ever-Power to ISO 9001:2015 with 100% factory load testing.<\/div>","protected":false},"featured_media":864,"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-863","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\/ru\/wp-json\/wp\/v2\/product\/863","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/planetary-gearboxes.com\/ru\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/planetary-gearboxes.com\/ru\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/ru\/wp-json\/wp\/v2\/comments?post=863"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/ru\/wp-json\/wp\/v2\/media\/864"}],"wp:attachment":[{"href":"https:\/\/planetary-gearboxes.com\/ru\/wp-json\/wp\/v2\/media?parent=863"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/ru\/wp-json\/wp\/v2\/product_brand?post=863"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/ru\/wp-json\/wp\/v2\/product_cat?post=863"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/ru\/wp-json\/wp\/v2\/product_tag?post=863"}],"curies":[{"name":"WP","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}