{"id":2414,"date":"2026-06-30T08:59:20","date_gmt":"2026-06-30T08:59:20","guid":{"rendered":"https:\/\/hydrauliccylindersprice.com\/product\/injection-molding-machine-reciprocating-cylinder-mold-shifting-cylinder\/"},"modified":"2026-06-30T08:59:21","modified_gmt":"2026-06-30T08:59:21","slug":"injection-molding-machine-reciprocating-cylinder-mold-shifting-cylinder","status":"publish","type":"product","link":"https:\/\/hydrauliccylindersprice.com\/id\/produk\/injection-molding-machine-reciprocating-cylinder-mold-shifting-cylinder\/","title":{"rendered":"Injection Molding Machine Reciprocating Cylinder (Mold Shifting Cylinder)"},"content":{"rendered":"

<\/p>\n

<\/p>\n

\n
\n
\n Injection Molding Machine<\/span>
\n Mold Shifting Cylinder \u00b7 4th of 4<\/span>\n <\/div>\n

4 Metres of Stroke.
Hours of Changeover
Compressed to Minutes.<\/h2>\n

The shooting cylinder docks the nozzle. The ejection cylinder pushes the part out. The mold opening\/closing cylinder opens and closes the mold. All three operate during every injection cycle. The mold shifting cylinder operates between production runs \u2014 sliding the old mold out of the machine and the new mold in. It runs a few times per day, but every minute it saves on changeover is a minute of production recovered. On a machine making $200\/hour of product, a 30-minute faster changeover pays for the cylinder in weeks.<\/p>\n

\n
\n
\u22644,000mm<\/span><\/div>\n
Stroke (Longest)<\/div>\n<\/div>\n
\n
63\u2013180mm<\/span><\/div>\n
Bore<\/div>\n<\/div>\n
\n
407 KN<\/div>\n
Max Thrust<\/div>\n<\/div>\n
\n
16MPa<\/span><\/div>\n
Pressure<\/div>\n<\/div><\/div>\n<\/p><\/div>\n<\/section>\n

<\/p>\n

\n

What Mold Shifting Means \u2014 Swapping the Entire Mold, Not Opening It<\/h2>\n

The mold opening\/closing cylinder<\/a> (#26) opens the mold halves for part ejection during every production cycle \u2014 the mold stays in the machine. The mold shifting cylinder does something entirely different: it removes the complete mold from between the platens and replaces it with a different mold for the next production run.<\/p>\n

Traditional mold changes require a crane: unclamp the mold, lift it out with an overhead crane, set it aside, crane the next mold in, align it, clamp it. This takes 1\u20134 hours with two technicians. The mold shifting cylinder replaces the crane operation: the mold sits on a roller bed or guided carrier. The cylinder slides the old mold out to a staging position (where it can be disconnected from water, hydraulics, and electrics at ground level) and slides the new mold in \u2014 all in under 10 minutes. Korea Ever-Power manufactures mold shifting cylinders as the fourth component of the injection moulding machine cylinder family<\/a>.<\/p>\n

\"Injection
\n<\/section>\n

<\/p>\n

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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>\nInjection Molding Machine Reciprocating Cylinder (Mold Shifting)<\/td>\n<\/tr>\n
Function<\/td>\nSlide the mold carrier in\/out for quick mold changes<\/td>\n<\/tr>\n
Bore Diameter<\/td>\n63 mm \u2013 180 mm<\/td>\n<\/tr>\n
Rod Diameter<\/td>\n45 mm \u2013 125 mm<\/td>\n<\/tr>\n
Stroke<\/td>\n\u2264 4,000 mm (longest in family)<\/td>\n<\/tr>\n
Maximum Thrust<\/td>\n407 KN (bore 180 mm \/ pressure 16 MPa)<\/td>\n<\/tr>\n
Working Pressure<\/td>\nUp to 16 MPa<\/td>\n<\/tr>\n
Certification<\/td>\nISO 9001 \u00b7 100% hydrostatic tested<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/section>\n

<\/p>\n

\n
\n

From Hours to Minutes \u2014 The Economics of Fast Changeover<\/h2>\n

Quick Mold Change (QMC) transforms injection moulding economics. Without it, long changeover times force manufacturers to produce large batches (to spread the changeover cost across more parts). With QMC, small batches become profitable \u2014 enabling just-in-time production, more product variants, and less warehoused inventory.<\/p>\n

\n
\n Traditional crane changeover<\/strong><\/p>\n

Unclamp old mold \u2192 crane lift out \u2192 transport aside \u2192 crane new mold in \u2192 align \u2192 clamp \u2192 connect utilities \u2192 purge \u2192 first good part. Total time: 1\u20134 hours. Requires crane availability, two skilled technicians, and the machine sits idle throughout \u2014 producing zero parts.<\/p>\n<\/p><\/div>\n

\n Mold shifting cylinder changeover<\/strong><\/p>\n

Unclamp old mold \u2192 cylinder slides old mold out to staging \u2192 disconnect utilities at ground level \u2192 cylinder slides new mold in (pre-staged with utilities pre-connected) \u2192 clamp \u2192 purge \u2192 first good part. Total time: 5\u201315 minutes. No crane needed. One technician. Machine idle time reduced by 80\u201395%.<\/p>\n<\/p><\/div>\n<\/p><\/div>\n

\n

On a machine producing $200\/hour of product, a 2-hour changeover reduction saves $400 per changeover. At 2 changeovers per day, that is $800\/day or approximately $200,000 per year \u2014 from a single cylinder. Contact the hydraulic cylinder engineering team<\/a> for QMC system cylinder specifications.<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<\/section>\n

<\/p>\n

\n

Why 4,000 mm of Stroke \u2014 The Mold Must Clear the Machine Entirely<\/h2>\n
\n \"4-metre<\/p>\n

The other injection moulding cylinders have short strokes: the shooting cylinder needs 1,500 mm to retract the injection unit, the ejection cylinder needs 600 mm to push the part out, and the mold opening\/closing cylinder needs 700 mm to separate the platens. The mold shifting cylinder needs 4,000 mm because it must move the entire mold \u2014 which sits between the platens \u2014 completely outside the machine frame to a staging position where technicians can safely access it from all sides.<\/p>\n

The mold itself may be 400\u20131,200 mm wide (in the direction of travel). But the staging position must be far enough from the machine for the technician to walk around the mold, disconnect the water hoses, the hydraulic core-pull lines, the hot runner electrical cables, and the thermocouple connections \u2014 all without reaching into the machine frame. The 4,000 mm stroke provides clearance for the mold width plus the technician working space plus the connection access zone.<\/p>\n

On large machines with wide molds, the full 4,000 mm is used. On smaller machines, a shorter stroke suffices \u2014 the same cylinder design with a shorter barrel accommodates the range. Korea Ever-Power manufactures the mold shifting cylinder at whatever stroke the machine builder specifies, up to the 4,000 mm maximum.<\/p>\n<\/p><\/div>\n

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

<\/p>\n

\n

The Complete Injection Moulding Cylinder Family \u2014 Four Functions, One Machine<\/h2>\n
\n\n\n\n\n\n\n\n\n
#<\/th>\nCylinder<\/th>\nStroke<\/th>\nMPa<\/th>\nFunction<\/th>\nWhen<\/th>\n<\/tr>\n<\/thead>\n
24<\/td>\nShooting<\/td>\n\u22641,500<\/td>\n25<\/td>\nDock nozzle to mold<\/td>\nEvery cycle<\/td>\n<\/tr>\n
25<\/td>\nEjection<\/td>\n\u2264600<\/td>\n10<\/td>\nPush part out<\/td>\nEvery cycle<\/td>\n<\/tr>\n
26<\/td>\nMold Open\/Close<\/td>\n\u2264700<\/td>\n25<\/td>\nOpen\/close mold halves<\/td>\nEvery cycle<\/td>\n<\/tr>\n
27<\/td>\nMold Shifting<\/td>\n\u22644,000<\/td>\n16<\/td>\nSwap entire mold<\/td>\nBetween runs<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n

Three cylinders run every cycle (thousands per shift); one cylinder runs between production runs (a few times per day). Korea Ever-Power supplies all four as a coordinated set for injection moulding machine builders.<\/p>\n<\/section>\n

<\/p>\n

\n

Moving 1\u201330 Tonnes on a Roller Bed<\/h2>\n
\n \"Mold<\/p>\n

Injection moulds weigh from 50 kg (small consumer product moulds) to 30 tonnes (automotive bumper and dashboard moulds). The mold shifting cylinder must start, move, and stop these masses smoothly on the roller bed or guided carrier rails. The force to start the mold moving (overcoming static friction on the rollers) is higher than the force to keep it moving \u2014 the cylinder must deliver a burst of force at the start of the stroke without jerking the mold off its alignment.<\/p>\n

At the end of the stroke, the mold must stop at an exact position \u2014 either centred between the platens (for the incoming mold) or centred at the staging station (for the outgoing mold). Overshoot or undershoot means the mold is misaligned with the platen bolt holes or the utility connection points, requiring manual correction that adds changeover time. Korea Ever-Power designs the mold shifting cylinder with adjustable end-of-stroke cushioning for precise positioning at both the machine-centre and staging positions.<\/p>\n

The 4,000 mm stroke at 180 mm bore creates a long, slender cylinder that must resist lateral loading from roller bed misalignment. The rod guide bearing is oversized for the horizontal mounting \u2014 the same long-stroke engineering that Korea Ever-Power applies to the cement equipment roll over cylinder<\/a> (#22), which shares the same long-stroke challenges.<\/p>\n<\/p><\/div>\n

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

<\/p>\n

\n \"Quick
\n<\/section>\n

<\/p>\n

\n

Manufacturing<\/h2>\n

\"Korea<\/p>\n

The mold shifting cylinder shares long-stroke engineering challenges with the cement roll over cylinder (#22): Euler buckling verification at full extension, oversized rod guide bearings for horizontal duty, and rod straightness verification (\u22640.2 mm\/metre). The bore is honed to Ra 0.2\u20130.4 \u00b5m. Chrome plating is 30\u201350 \u00b5m (clean factory environment). Seals are standard NBR or polyurethane \u2014 selected for smooth low-speed motion during the final positioning phase. End-of-stroke cushions are fitted at both ends and calibrated for the heaviest mold mass in the customer’s range. Every mold shifting cylinder is hydrostatic tested at 1.5\u00d7 working pressure (24 MPa) and functionally tested for full-stroke extension and retraction with cushion verification at both positions.<\/p>\n<\/section>\n

<\/p>\n

\n

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

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

Maximum mold weight, roller bed or carrier type, stroke (machine-centre to staging position), shifting speed requirement, mounting geometry (typically horizontal, below or beside the platen area), positioning accuracy at both end positions, and the QMC system drawing showing the cylinder mounting, roller bed layout, and mold carrier path.<\/p>\n<\/div><\/div>\n

\n
\n

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

Engineering drawing with bore, rod (buckling-verified for the pin-to-pin geometry), stroke, oversized guide bearing, cushion specification (calibrated for maximum mold mass and shifting speed), and mounting dimensions. Hydrostatic test + full-stroke functional test with cushion verification. Seal kits. Browse the complete injection moulding machine cylinder family<\/a> and the full hydraulic cylinder product range<\/a>.<\/p>\n<\/div><\/div>\n<\/p><\/div>\n<\/section>\n

<\/p>\n

\n

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

Is the mold shifting cylinder used during production, or only during changeover?<\/h3>\n

Only during changeover. Once the mold is positioned between the platens and clamped, the mold shifting cylinder is idle throughout the production run. The mold opening\/closing cylinder<\/a> (#26) handles the per-cycle mold motion during production. The mold shifting cylinder re-engages only when the production run ends and a new mold is needed.<\/p>\n<\/p><\/div>\n

\n

Can two molds be on the roller bed simultaneously?<\/h3>\n

Yes \u2014 some QMC systems use a two-position roller bed: the old mold shifts out to position A while the new mold (pre-staged at position B on the opposite side) shifts in. This requires two mold shifting cylinders \u2014 one per side \u2014 and cuts the changeover time approximately in half. Korea Ever-Power manufactures matched pairs for dual-position QMC systems.<\/p>\n<\/p><\/div>\n

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How does the mold align with the platen bolt holes after shifting in?<\/h3>\n

The roller bed has guide rails or locating pins that position the mold laterally. The mold shifting cylinder provides the longitudinal positioning \u2014 the cushion deceleration and\/or a mechanical stop at the machine-centre position ensure the mold arrives at the correct longitudinal location. On precision QMC systems, a position sensor on the cylinder confirms the mold is within \u00b11 mm of the target position before the magnetic or hydraulic platen clamps engage. The same positioning precision applies across the forklift attachment positioning systems<\/a> and telescopic extension systems<\/a> in the Korea Ever-Power range.<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<\/section>\n

<\/p>\n

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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":"

Injection molding machine reciprocating cylinder \u2014 also called the mold shifting cylinder \u2014 the actuator that slides the mold carrier or turntable in and out of the machine platens for quick mold changes. Stroke \u22644,000 mm \u2014 far longer than any other injection moulding cylinder \u2014 because it must move the entire mold outside the machine frame for disconnection, preparation, and replacement. The other three injection moulding cylinders (#24\u2013#26) operate thousands of times per shift during production. This cylinder operates a few times per day \u2014 but each operation determines how quickly the machine can switch from one product to the next. Bore 63\u2013180 mm, 16 MPa, 407 KN. Korea Ever-Power. ISO 9001. OEM & ODM.<\/div>","protected":false},"featured_media":2415,"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-2414","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\/id\/wp-json\/wp\/v2\/product\/2414","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hydrauliccylindersprice.com\/id\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/hydrauliccylindersprice.com\/id\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/id\/wp-json\/wp\/v2\/comments?post=2414"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/id\/wp-json\/wp\/v2\/media\/2415"}],"wp:attachment":[{"href":"https:\/\/hydrauliccylindersprice.com\/id\/wp-json\/wp\/v2\/media?parent=2414"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/id\/wp-json\/wp\/v2\/product_brand?post=2414"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/id\/wp-json\/wp\/v2\/product_cat?post=2414"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/id\/wp-json\/wp\/v2\/product_tag?post=2414"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}