{"id":2392,"date":"2026-06-30T08:59:01","date_gmt":"2026-06-30T08:59:01","guid":{"rendered":"https:\/\/hydrauliccylindersprice.com\/product\/electric-furnace-tipping-cylinder\/"},"modified":"2026-06-30T08:59:09","modified_gmt":"2026-06-30T08:59:09","slug":"electric-furnace-tipping-cylinder","status":"publish","type":"product","link":"https:\/\/hydrauliccylindersprice.com\/sr\/%d0%bf%d1%80%d0%be%d0%b8%d0%b7%d0%b2%d0%be%d0%b4\/electric-furnace-tipping-cylinder\/","title":{"rendered":"Electric Furnace Tipping Cylinder"},"content":{"rendered":"

<\/p>\n

<\/p>\n

\n
\n
\n Electric Furnace \u00b7 Tipping Cylinder<\/span>
\n Controlled Steel Pour<\/span>\n <\/div>\n

The Controlled Pour
of Liquid Steel<\/h2>\n

Every 40\u201370 minutes, the electric arc furnace completes a melt. The lock cylinder disengages. The tipping cylinder takes over \u2014 tilting the entire furnace body to pour 100\u2013200 tonnes of liquid steel at 1,600 \u00b0C into the waiting ladle below. Too fast and the metal splashes. Too slow and the steel temperature drops below specification. The operator’s hand is on the proportional valve; the tipping cylinder translates that command into the controlled rotation of a 500-tonne furnace.<\/p>\n

\n
\n
989 KN<\/div>\n
Thrust<\/div>\n<\/div>\n
\n
320mm<\/span><\/div>\n
Bore<\/div>\n<\/div>\n
\n
300mm<\/span><\/div>\n
Rod (93.8%)<\/div>\n<\/div>\n
\n
2-Way<\/div>\n
Tap + Slag Tilt<\/div>\n<\/div><\/div>\n<\/p><\/div>\n<\/section>\n

<\/p>\n

\n

Two Directions of Tilt \u2014 Steel Forward, Slag Backward<\/h2>\n

The electric furnace tilts in two opposite directions for two different purposes \u2014 and the tipping cylinder drives both movements from its position on the furnace tilt cradle.<\/p>\n

\n
\n
\n

Forward Tilt \u2014 Steel Tapping (40\u201345\u00b0)<\/h3>\n<\/div>\n
\n

The furnace tilts forward (toward the tapping spout) to pour the molten steel into the ladle below. The tilt angle starts at 0\u00b0 (upright) and progresses to 40\u201345\u00b0 as the furnace empties. The operator increases the angle gradually \u2014 matching the pour rate to the ladle’s filling capacity and maintaining the steel temperature above the minimum casting specification. A typical tap takes 2\u20135 minutes for 100\u2013200 tonnes of liquid steel.<\/p>\n<\/p><\/div>\n<\/p><\/div>\n

\n
\n

Backward Tilt \u2014 Slag Removal (10\u201315\u00b0)<\/h3>\n<\/div>\n
\n

After the steel is tapped, the furnace tilts in the opposite direction \u2014 backward, toward the slag door \u2014 to pour the remaining slag into a slag pot. Slag is lighter than steel and floats on top of the melt; the backward tilt allows the slag to flow over the rear sill without carrying steel with it. The backward tilt angle is shallower (10\u201315\u00b0) because the slag volume is smaller and the slag door opening is positioned higher than the tapping spout.<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n

The tipping cylinder must produce thrust in both directions \u2014 extending to tilt forward, retracting to tilt backward (or vice versa, depending on the cylinder mounting geometry). This is why the cylinder is double-acting with full pressure capability on both ports. Korea Ever-Power engineers the cylinder and the tilt mechanism geometry together as part of the electric furnace cylinder family<\/a>.<\/p>\n<\/section>\n

<\/p>\n

\n \"Electric
\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>\nElectric Furnace Tipping Cylinder<\/td>\n<\/tr>\n
Function<\/td>\nTilt furnace for steel tapping and slag removal<\/td>\n<\/tr>\n
Bore Diameter<\/td>\n320 mm<\/td>\n<\/tr>\n
Rod Diameter<\/td>\n300 mm (93.8% of bore)<\/td>\n<\/tr>\n
Working Pressure<\/td>\n14 MPa<\/td>\n<\/tr>\n
Maximum Thrust<\/td>\n989 KN<\/td>\n<\/tr>\n
Tilt Directions<\/td>\nForward (steel tap, 40\u201345\u00b0) + Backward (slag, 10\u201315\u00b0)<\/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

Tipping Speed Determines Steel Quality<\/h2>\n
\n \"Tipping<\/p>\n

The tipping cylinder does not simply dump the metal \u2014 it controls the pour rate, which directly affects the quality of the steel reaching the ladle. This is why proportional speed control is essential, and why simple on\/off hydraulic valves are never acceptable for tipping service.<\/p>\n

Temperature loss during tapping.<\/strong> Every second of tapping time costs 1\u20133 \u00b0C of steel temperature. A 200-tonne tap that takes 5 minutes instead of 3 minutes loses an additional 120\u2013360 \u00b0C of superheat \u2014 which may drop the steel below the minimum casting temperature, requiring reheating in the ladle furnace (energy waste, schedule delay).<\/p>\n

Oxygen pickup during tapping.<\/strong> As the molten steel stream falls through air into the ladle, it absorbs oxygen \u2014 which must later be removed by adding expensive deoxidisers (aluminium, silicon). A fast, compact stream (steep tilt angle, high flow rate) exposes less surface area to air than a slow, thin stream (shallow tilt, low flow). The tipping cylinder’s angle control directly affects the oxygen content of the tapped steel.<\/p>\n

Slag carryover control.<\/strong> Near the end of tapping, the slag layer approaches the tapping spout. The operator must slow and then stop the tilt at precisely the right moment \u2014 pouring the last of the steel while keeping the slag inside the furnace. Tilting too far carries slag into the ladle (contaminating the steel); stopping too early leaves valuable steel in the furnace (yield loss). This final few degrees of tilt control is the most skill-dependent moment in EAF steelmaking \u2014 and the tipping cylinder must respond to the operator’s command without lag, overshoot, or hesitation.<\/p>\n<\/p><\/div>\n

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

<\/p>\n

\n
\n

Engineering Insight \u2014 Why On\/Off Valves Cannot Do This Job<\/h2>\n

A standard directional valve has three states: extend, retract, or stop. The tipping cylinder needs infinitely variable speed control \u2014 fast at the start of the tap (to minimise temperature loss), progressively slower as the furnace empties (to control the pour stream), and extremely precise in the final degrees (to separate steel from slag). This requires proportional hydraulics.<\/p>\n

\n
\n Proportional flow valve<\/strong><\/p>\n

A proportional valve on the tipping cylinder circuit adjusts the flow to the cylinder continuously \u2014 from zero to maximum \u2014 in response to the operator’s joystick or the automated tapping control system. The flow determines the tilt speed. The operator can tilt at 2\u00b0\/second at the start and 0.1\u00b0\/second at the end \u2014 a 20:1 speed range \u2014 from the same cylinder and the same valve.<\/p>\n<\/p><\/div>\n

\n Counterbalance valve for gravity assist<\/strong><\/p>\n

As the furnace tilts forward, the centre of gravity of the molten metal shifts toward the tapping spout \u2014 creating a gravity moment that tries to accelerate the tilt. Without a counterbalance valve, the furnace would tip faster and faster as it tilts further \u2014 a runaway pour. The counterbalance valve on the rod side of the tipping cylinder provides a controlled back-pressure that prevents gravity-assisted runaway, ensuring the tilt speed follows the operator’s command at all times.<\/p>\n<\/p><\/div>\n

\n Emergency stop = immediate hold<\/strong><\/p>\n

An emergency stop command must lock the furnace at its current tilt angle \u2014 instantly, without drift. The tipping cylinder’s circuit includes a pair of pilot-operated check valves that seal both ports when the proportional valve is de-energised, trapping the oil and freezing the cylinder’s position. No coast, no creep, no additional tilt after the stop command. Contact the hydraulic cylinder engineering team<\/a> for tipping control circuit specifications.<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/section>\n

<\/p>\n

\n

The Tapping Zone \u2014 Where the Cylinder Works<\/h2>\n
\n \"Tipping<\/p>\n

The tipping cylinder is mounted on the furnace tilt cradle \u2014 directly below the furnace shell, in the tapping zone. This is the most hostile location in the melt shop: radiant heat from the furnace shell above, splashing steel and slag during tapping, forge spray (the cooling water applied to the tapping spout), and accumulated scale and debris on the tilt platform.<\/p>\n

The rod surface is particularly vulnerable. During tapping, molten metal droplets and slag particles can land on the exposed rod. A single steel splash that bonds to the chrome surface creates a raised point that scores the rod seal on the next stroke \u2014 initiating a leak that progressively worsens until seal replacement. Korea Ever-Power specifies a telescopic rod shroud or bellows boot as standard for tipping cylinders to prevent splash contact with the rod.<\/p>\n

The same thermal protection features used on the cover lifting cylinder (#14) \u2014 heat shields, water-cooled barrel jacket (optional), FKM seals, and fire-resistant hydraulic fluid compatibility \u2014 apply to the tipping cylinder. The tipping cylinder’s proximity to the tapping stream makes it even more splash-exposed than the cover lifting cylinder, which is mounted higher on the furnace support structure.<\/p>\n<\/p><\/div>\n

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

<\/p>\n

\n \"Tipping
\n<\/section>\n

<\/p>\n

\n

Manufacturing<\/h2>\n

\"Korea<\/p>\n

The 320 mm bore and 300 mm rod (93.8% ratio) share the same structural-column design philosophy as the cover lifting cylinder (#14) \u2014 the massive rod supports the furnace weight component that acts through the tilt mechanism. Korea Ever-Power machines the rod from forged steel bar, stress-relieves after rough machining, and chrome plates to 80\u2013100 \u00b5m for splash resistance. The bore is honed to Ra 0.2\u20130.4 \u00b5m for consistent proportional control at low tilt speeds. The cylinder is hydrostatic tested at 1.5\u00d7 working pressure (21 MPa) and functionally tested for proportional speed control across the full tilt range \u2014 verifying smooth, lag-free response to the proportional valve signal at all speeds from 0.1\u00b0\/s to the maximum tilt rate.<\/p>\n<\/section>\n

<\/p>\n

\n

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

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

Furnace capacity (tonnes), tilt mechanism geometry (cradle radius, pivot axis position), required tilt angles (forward and backward), tilt speed range, stroke, distance from cylinder to tapping stream (for splash protection design), cooling water availability, fire-resistant fluid requirement, and the furnace tilt cradle drawing.<\/p>\n<\/div><\/div>\n

\n
\n

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

Engineering drawing with bore, rod (column-strength verified), stroke, seal and fluid specification, rod shroud detail, counterbalance valve specification, and proportional control circuit recommendation. Hydrostatic + proportional speed test certificate. Seal kits. Browse the complete electric furnace cylinder family<\/a>.<\/p>\n<\/div><\/div>\n<\/p><\/div>\n<\/section>\n

<\/p>\n

\n

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

How does the tipping cylinder coordinate with the lock cylinder?<\/h3>\n

Through hardwired interlocks: the lock cylinder<\/a> displacement sensor must confirm “fully disengaged” before the tipping cylinder’s proportional valve is permitted to energise. Conversely, the tipping cylinder’s position must confirm “furnace upright” before the lock cylinder is permitted to re-engage. These interlocks are hardwired relay logic \u2014 not software-only \u2014 so a control system crash cannot bypass them.<\/p>\n<\/p><\/div>\n

\n

What prevents the furnace from tipping too far?<\/h3>\n

Three layers: (1) the proportional valve limits the maximum flow to the cylinder, capping the tilt speed; (2) mechanical stops on the tilt cradle physically limit the maximum tilt angle to the designed forward and backward limits; (3) a position sensor on the tipping cylinder (or on the tilt mechanism directly) feeds the current tilt angle to the control system, which commands the proportional valve to zero when the target angle is reached.<\/p>\n<\/p><\/div>\n

\n

How many tipping cylinders per furnace?<\/h3>\n

Typically 2 \u2014 one on each side of the tilt cradle, operating synchronously to tilt the furnace evenly. The paired cylinders share a common proportional valve (or synchronised separate valves) and are manufactured as a matched set with verified stroke and speed synchronisation. The same matched-pair principle applies across the Korea Ever-Power hydraulic cylinder range<\/a>, including dual-cylinder forklift mast systems<\/a> and dual-cylinder dump truck hoists<\/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":"

Electric furnace tipping cylinder \u2014 the actuator that tilts the entire electric arc furnace to pour 100\u2013200 tonnes of molten steel into the ladle at 1,600 \u00b0C. The lock cylinder (#15) holds the furnace stationary during melting; this cylinder releases that restraint and makes it tilt \u2014 forward to tap steel into the ladle, backward to pour slag in the opposite direction. Tipping speed is not fixed: the operator controls the tilt angle continuously via proportional hydraulic valves, adjusting the pour rate in real time to match the ladle fill, minimise temperature loss, and control slag carryover. Bore 320 mm, rod 300 mm (93.8% ratio), 14 MPa, 989 KN. Korea Ever-Power. ISO 9001. OEM & ODM.<\/div>","protected":false},"featured_media":2393,"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-2392","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\/sr\/wp-json\/wp\/v2\/product\/2392","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hydrauliccylindersprice.com\/sr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/hydrauliccylindersprice.com\/sr\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/sr\/wp-json\/wp\/v2\/comments?post=2392"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/sr\/wp-json\/wp\/v2\/media\/2393"}],"wp:attachment":[{"href":"https:\/\/hydrauliccylindersprice.com\/sr\/wp-json\/wp\/v2\/media?parent=2392"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/sr\/wp-json\/wp\/v2\/product_brand?post=2392"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/sr\/wp-json\/wp\/v2\/product_cat?post=2392"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/sr\/wp-json\/wp\/v2\/product_tag?post=2392"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}