{"id":2384,"date":"2026-06-30T08:59:01","date_gmt":"2026-06-30T08:59:01","guid":{"rendered":"https:\/\/hydrauliccylindersprice.com\/product\/hydraulic-press-rear-side-shift-cylinder\/"},"modified":"2026-06-30T08:59:06","modified_gmt":"2026-06-30T08:59:06","slug":"hydraulic-press-rear-side-shift-cylinder","status":"publish","type":"product","link":"https:\/\/hydrauliccylindersprice.com\/ko\/product\/hydraulic-press-rear-side-shift-cylinder\/","title":{"rendered":"Hydraulic Press Rear Side Shift Cylinder"},"content":{"rendered":"

<\/p>\n

<\/p>\n

\n
\n Hydraulic Press \u00b7 Rear Side Shift Cylinder<\/span><\/p>\n

The Rear Half of
a Precision Pair<\/h2>\n

The front side shift cylinder pushes the front end of the billet. Without a matching push at the back, the billet pivots instead of sliding. The rear side shift cylinder provides that matching push \u2014 smaller in diameter, lower in force, but perfectly synchronised \u2014 so the billet translates cleanly, without any rotation in the clamp jaws.<\/p>\n

\n
\n
636 KN<\/div>\n
Max Thrust<\/div>\n<\/div>\n
\n
70\u2013180mm<\/span><\/div>\n
Plunger<\/div>\n<\/div>\n
\n
\u2264300mm<\/span><\/div>\n
Stroke<\/div>\n<\/div>\n
\n
Paired<\/div>\n
With Front (#11)<\/div>\n<\/div><\/div>\n<\/p><\/div>\n<\/section>\n

<\/p>\n

\n

Smaller by Design \u2014 Not Weaker, Lighter-Loaded<\/h2>\n

The rear side shift cylinder’s plunger is 70\u2013180 mm \u2014 smaller than the front cylinder’s 80\u2013240 mm. Its maximum thrust is 636 KN \u2014 roughly half of the front cylinder’s 1,130 KN. This asymmetry looks like a mismatch, but it reflects the load distribution on the manipulator clamp head.<\/p>\n

The billet extends forward beyond the front jaw \u2014 cantilevered toward the press dies. During a horizontal side shift, the front cylinder must push against the full cantilevered weight of the billet’s overhanging front end. The rear cylinder pushes against the lighter rear end \u2014 the portion of the billet behind the clamp, which is shorter and closer to the manipulator arm’s support structure. Less overhang means less load, and less load means a smaller cylinder does the job without being oversized. Korea Ever-Power sizes each cylinder to its actual load \u2014 never over-engineering one end just to match the other. Both are part of the industrial engineering hydraulic cylinder<\/a> programme.<\/p>\n

\"Hydraulic
\n<\/section>\n

<\/p>\n

\n

Technical Specifications<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nValue<\/th>\n<\/tr>\n<\/thead>\n
Product<\/td>\nHydraulic Press Rear Side Shift Cylinder<\/td>\n<\/tr>\n
Function<\/td>\nCooperate with front cylinder to shift billet horizontally<\/td>\n<\/tr>\n
Type<\/td>\nPlunger (single-acting)<\/td>\n<\/tr>\n
Plunger Diameter<\/td>\n70 mm \u2013 180 mm<\/td>\n<\/tr>\n
Stroke<\/td>\n\u2264 300 mm<\/td>\n<\/tr>\n
Maximum Thrust<\/td>\n636 KN (plunger 180 mm \/ pressure 25 MPa)<\/td>\n<\/tr>\n
Working Pressure<\/td>\nUp to 25 MPa<\/td>\n<\/tr>\n
Certification<\/td>\nISO 9001 \u00b7 100% hydrostatic tested \u00b7 matched to front cylinder<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/section>\n

<\/p>\n

\n

Rear Mounting \u2014 Installation Constraints the Front Cylinder Does Not Face<\/h2>\n
\n \"Rear<\/p>\n

The front side shift cylinder is mounted on the operator-facing side of the clamp head \u2014 an accessible location with ample clearance for hose connections, maintenance access, and cylinder removal. The rear cylinder has none of these advantages.<\/p>\n

Limited access.<\/strong> The rear of the manipulator clamp is close to the manipulator arm, the rotation mechanism, and the traverse drive. Space for the cylinder body, hose routing, and maintenance tooling is constrained. The rear cylinder must be as compact as possible \u2014 which is another reason the plunger type is preferred over a piston type at this position.<\/p>\n

Hose routing through the rotation joint.<\/strong> The hydraulic hose feeding the rear cylinder must pass through or around the manipulator’s clamp rotation mechanism. This routing subjects the hose to repeated flexing during billet rotation \u2014 a fatigue failure risk. Korea Ever-Power specifies high-flex hose assemblies with verified bend-cycle life for the rear cylinder installation, and recommends routing guides that prevent the hose from being pinched during rotation.<\/p>\n

Maintenance access planning.<\/strong> Because the rear cylinder is harder to reach, seal replacement takes longer than on the front cylinder. Korea Ever-Power designs the rear cylinder with a removable plunger gland that can be extracted rearward (toward the manipulator arm) without disconnecting the cylinder body from its mounting \u2014 reducing the disassembly needed for a seal change in the confined rear position.<\/p>\n<\/p><\/div>\n

<\/div>\n<\/section>\n

<\/p>\n

\n

The Complete Manipulator Cylinder System \u2014 Five Functions, One Set<\/h2>\n

The rear side shift cylinder is the last piece in the manipulator’s five-cylinder positioning system. Together, these five cylinder types give the manipulator full control over the billet’s position, orientation, and grip \u2014 everything needed to present the workpiece to the press dies at the exact angle, height, and lateral position required for each forging pass.<\/p>\n

\n\n\n\n\n\n\n\n\n\n
Cylinder<\/th>\nAction<\/th>\nMax Force<\/th>\nSequence<\/th>\n<\/tr>\n<\/thead>\n
Centering (#10)<\/td>\nCentre clamp<\/td>\n441 KN<\/td>\nBefore gripping<\/td>\n<\/tr>\n
Clamping (#8)<\/td>\nGrip billet<\/td>\n9,621 KN<\/td>\nGrip & hold<\/td>\n<\/tr>\n
Tilt (#5)<\/td>\nRotate billet<\/td>\n3,141 KN<\/td>\nSet angle<\/td>\n<\/tr>\n
Front Side Shift (#11)<\/td>\nShift front end<\/td>\n1,130 KN<\/td>\nFine horizontal<\/td>\n<\/tr>\n
Rear Side Shift (#12)<\/td>\nShift rear end<\/td>\n636 KN<\/td>\nSynchronised with #11<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n

Korea Ever-Power manufactures the complete five-cylinder set for each manipulator \u2014 all cylinders from the same production batch, tested together, with cross-referenced serial numbers. Ordering the complete set guarantees dimensional compatibility, synchronisation, and shared seal specifications across all five cylinder types.<\/p>\n<\/section>\n

<\/p>\n

\n
\n

Engineering Insight \u2014 Speed Matching Between Unequal Cylinders<\/h2>\n

The front and rear side shift cylinders have different plunger diameters \u2014 so at the same pressure, they produce different forces. But for synchronised shifting, they need to extend at the same speed<\/em>. The hydraulic circuit solves this through a flow divider.<\/p>\n

\n

Extension speed = Flow \u00f7 Plunger area<\/strong><\/p>\n

For the same speed, the larger front plunger (more area) needs more flow than the smaller rear plunger (less area).<\/p>\n

\n
\n
Front: plunger 240mm, area = 452 cm\u00b2<\/div>\n
Needs 4.52 L\/s for 100 mm\/s<\/div>\n<\/p><\/div>\n
\n
Rear: plunger 180mm, area = 254 cm\u00b2<\/div>\n
Needs 2.54 L\/s for 100 mm\/s<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n

The flow divider splits the pump output into these unequal proportions \u2014 sending 64% to the front cylinder and 36% to the rear \u2014 so both extend at the same 100 mm\/s. Korea Ever-Power specifies the flow divider ratio as part of the matched pair delivery. Contact the hydraulic cylinder engineering team<\/a> for synchronized cylinder pair specifications.<\/p>\n<\/p><\/div>\n<\/section>\n

<\/p>\n

\n \"Rear
\n<\/section>\n

<\/p>\n

\n

Manufacturing \u2014 Rear-Specific Design Details<\/h2>\n
\n \"Korea<\/p>\n

The rear side shift cylinder is manufactured alongside the front cylinder as a matched pair. The plunger diameters are held to mutual tolerance against the specified flow divider ratio \u2014 ensuring that at the divider’s output split, both cylinders extend at the same speed. The plunger finish (chrome plated, ground to Ra \u22640.4 \u00b5m), seal specification (high-temperature FKM for forge environment), and mounting hardware are identical in design standard between front and rear.<\/p>\n

The rear cylinder includes a rear-extractable plunger gland design \u2014 allowing the gland to be pulled out toward the manipulator arm without removing the cylinder body from the clamp frame. This maintenance-focused design detail reflects the rear cylinder’s confined mounting position and reduces seal-change downtime from hours to under one hour.<\/p>\n

Every rear side shift cylinder is hydrostatic tested individually, then speed-tested alongside its matched front cylinder \u2014 verifying synchronised extension across the full 300 mm stroke. The paired test certificate accompanies both cylinders.<\/p>\n<\/p><\/div>\n

<\/div>\n<\/section>\n

<\/p>\n

\n

OEM & ODM<\/h2>\n
\n
\n
\n

What You Provide<\/h3>\n<\/div>\n
\n

Always ordered with the front side shift cylinder as a matched pair. Provide: billet weight, side shift range, rear mounting envelope (clearance to rotation mechanism), hose routing path through the rotation joint, and the clamp head drawing. The rear cylinder specification is derived from the front cylinder specification and the load distribution \u2014 provide the load data and Korea Ever-Power calculates both plunger diameters.<\/p>\n<\/div><\/div>\n

\n
\n

What the Factory Delivers<\/h3>\n<\/div>\n
\n

Matched front + rear pair with flow divider ratio specification, engineering drawing (including rear-extractable gland detail), plunger diameters, synchronisation test report, and high-flex hose specification for the rear cylinder’s rotation-joint routing. Seal kits for both. Browse all industrial manipulator and press cylinders<\/a>.<\/p>\n<\/div><\/div>\n<\/p><\/div>\n<\/section>\n

<\/p>\n

\n

FAQ<\/h2>\n
\n
\n

Can I replace just the rear cylinder without replacing the front?<\/h3>\n

Yes \u2014 if the front cylinder is still within specification. Provide the serial number of the existing front cylinder, and Korea Ever-Power will manufacture a rear cylinder matched to it. The new rear cylinder’s plunger diameter and tolerances will be verified against the existing front cylinder’s test data to confirm synchronisation compatibility. However, if both cylinders are approaching their service limit, replacing both as a new matched pair is more cost-effective than two separate replacements months apart.<\/p>\n<\/p><\/div>\n

\n

What happens if the rear hose fails at the rotation joint?<\/h3>\n

The rear cylinder loses pressure and cannot push. The front cylinder continues pushing alone \u2014 which rotates the billet in the clamp instead of shifting it straight. The press control system should detect the pressure imbalance (pressure sensor on the rear circuit) and stop the shift motion. This is a non-catastrophic failure (the billet does not fall \u2014 it is held by the clamping cylinder), but the manipulator cannot perform accurate side shifts until the hose is replaced. Pre-scheduled hose replacement based on the manufacturer’s flex-cycle life rating prevents this failure.<\/p>\n<\/p><\/div>\n

\n

Is a rotary union an alternative to flexible hoses at the rotation joint?<\/h3>\n

Yes \u2014 a rotary hydraulic union (swivel joint) mounted at the clamp rotation axis eliminates the flex-hose entirely, replacing it with a sealed rotating passage. Rotary unions are more expensive than flex hoses but have significantly longer service life and eliminate the flex-fatigue failure mode. Korea Ever-Power can specify compatible rotary unions when designing the rear cylinder installation. The same rotary union approach is used in rotating forklift attachments<\/a> and rotating telescopic crane cylinders<\/a>. Browse the full hydraulic cylinder product range<\/a>.<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<\/section>\n

<\/p>\n

\n

Related Categories<\/h2>\n
\n <\/p>\n
\n
\"Telescopic\"<\/div>\n
\n
Telescopic Hydraulic Cylinders \u2192<\/div>\n
Dump truck, trailer, hoist.<\/div>\n<\/div>\n<\/div>\n

<\/a>
\n <\/p>\n

\n
\"Forklift\"<\/div>\n
\n
Forklift Hydraulic Cylinders \u2192<\/div>\n
Lift, tilt, steer \u2014 OEM.<\/div>\n<\/div>\n<\/div>\n

<\/a>
\n <\/p>\n

\n
\"AWV\"<\/div>\n
\n
Aerial Work Vehicle Cylinders \u2192<\/div>\n
Scissor, boom, platforms.<\/div>\n<\/div>\n<\/div>\n

<\/a>\n <\/div>\n<\/section>\n

<\/main><\/p>","protected":false},"excerpt":{"rendered":"

Hydraulic press rear side shift cylinder \u2014 the synchronized partner that works with the front side shift cylinder to shift the billet horizontally without rotation. The rear cylinder is intentionally smaller than the front (plunger 70\u2013180 mm vs 80\u2013240 mm, thrust 636 KN vs 1,130 KN) because it operates at the rear of the clamp \u2014 closer to the manipulator’s rotation axis, where the billet’s cantilevered weight is lower. Both cylinders share the same stroke (\u2264300 mm), the same hydraulic circuit, and the same flow divider to ensure synchronised motion. The rear side shift cylinder completes the manipulator’s five-cylinder positioning system. Korea Ever-Power. ISO 9001. OEM & ODM.<\/div>","protected":false},"featured_media":2385,"comment_status":"closed","ping_status":"open","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[852],"product_tag":[],"class_list":["post-2384","product","type-product","status-publish","has-post-thumbnail","product_cat-industrial-engineering-hydraulic-cylinders","pa_editor-cxm","first","instock","product-type-simple"],"_links":{"self":[{"href":"https:\/\/hydrauliccylindersprice.com\/ko\/wp-json\/wp\/v2\/product\/2384","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hydrauliccylindersprice.com\/ko\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/hydrauliccylindersprice.com\/ko\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/ko\/wp-json\/wp\/v2\/comments?post=2384"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/ko\/wp-json\/wp\/v2\/media\/2385"}],"wp:attachment":[{"href":"https:\/\/hydrauliccylindersprice.com\/ko\/wp-json\/wp\/v2\/media?parent=2384"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/ko\/wp-json\/wp\/v2\/product_brand?post=2384"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/ko\/wp-json\/wp\/v2\/product_cat?post=2384"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/ko\/wp-json\/wp\/v2\/product_tag?post=2384"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}