{"id":204,"date":"2026-07-09T08:53:55","date_gmt":"2026-07-09T08:53:55","guid":{"rendered":"https:\/\/industrialelectricmotor.net\/?p=204"},"modified":"2026-07-09T08:53:55","modified_gmt":"2026-07-09T08:53:55","slug":"electric-motor-for-roller-conveyor-drives","status":"publish","type":"post","link":"https:\/\/industrialelectricmotor.net\/zh\/electric-motor-for-roller-conveyor-drives\/","title":{"rendered":"Electric Motor for Roller Conveyor Drives"},"content":{"rendered":"
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Korea Ever-Power \u00b7 Y2 Series \u00b7 Roller Conveyor Drive Guide<\/span><\/p>\n

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Electric Motor for Roller Conveyor Drives:
\nZone Drive, Accumulation and Live Roller Guide<\/span><\/h1>\n

Roller conveyors for pallet, case, and tote transport differ from belt conveyors in one important way: the driven element is a series of independent rollers rather than a continuous belt, allowing individual zones of the conveyor to be driven independently or stopped while others continue. This zone-drive architecture requires many small drive motors \u2014 typically one per zone of 1 to 5 metres \u2014 each small enough to fit within the conveyor frame. Korea Ever-Power Y2 series motors in compact IEC frames from 71 to 132 cover the 0.12 to 5.5 kW zone drive motor range for accumulation roller conveyors, live roller systems, and motorised roller drives in industrial logistics and manufacturing.<\/p>\n

Zone Drive Architecture<\/span>
\n0.12\u20135.5 kW<\/span>
\nCompact IEC 71\u2013132<\/span>
\nAccumulation Ready<\/span>
\nS1 Continuous<\/span><\/div>\n<\/div>\n<\/div>\n

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Zone drive<\/div>\n
One motor per 1\u20135 m zone<\/div>\n<\/div>\n
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0.12\u20135.5 kW<\/div>\n
Zone motor power range<\/div>\n<\/div>\n
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4-pole<\/div>\n
Standard for roller conveyors<\/div>\n<\/div>\n
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SF 1.15<\/div>\n
Accumulation service factor<\/div>\n<\/div>\n
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IE3<\/div>\n
Premium efficiency<\/div>\n<\/div>\n<\/div>\n

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\"Three-phase<\/p>\n
Korea Ever-Power Y2 series compact four-pole motors in IEC 71 to 132 frames are the standard zone drive motor for industrial roller conveyors. The compact foot-and-flange mounting allows the motor to be mounted beneath the conveyor frame within the standard conveyor width envelope, typically paired with a small inline helical or bevel-helical gearbox to reduce the 1,450 rpm motor speed to the 10 to 60 rpm roller drive speed required.<\/div>\n<\/div>\n

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Contents<\/div>\n
1. Roller Conveyor Types and Zone Drive<\/a>
\n2. Zone Motor Power Calculation<\/a>
\n3. Accumulation Mode and Motor Rating<\/a>
\n4. Drive Speed and Gearbox Selection<\/a>
\n5. Compact Mounting in Conveyor Frame<\/a>
\n6. Y2 Series for Roller Conveyor<\/a>
\n7. Roller Conveyor Applications<\/a>
\n8. Frequently Asked Questions<\/a><\/div>\n<\/div>\n

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1. Roller Conveyor Types and Zone Drive Architecture<\/h2>\n

Roller conveyors fall into two broad categories based on the driving principle: gravity roller conveyors where product slides downhill under gravity without any motor, and powered roller conveyors where motors rotate the rollers to transport product on level or inclined surfaces. Powered roller conveyors use several different driving architectures depending on the product weight and the accumulation requirement.<\/p>\n

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Line Shaft Drive<\/div>\n

A single motor drives a line shaft running the full length of the conveyor. Individual rollers are driven from the line shaft through round belts or O-rings. The slip between the O-ring and the roller allows accumulation \u2014 when a product stops, the O-ring slips on the stationary roller. Line shaft drives use a single Y2 motor of 0.37 to 2.2 kW per 10 to 20 m section, with the motor output coupled to the line shaft through a small gearbox or directly. This is the simplest and lowest cost roller conveyor drive architecture for light to medium loads.<\/p>\n<\/div>\n

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Zone Drive<\/div>\n

A separate motor drives each accumulation zone (1 to 5 m long) of the conveyor. Each zone motor is independently controlled by the conveyor zone controller, which can stop a zone when a product is waiting or when the downstream zone is blocked. Zone drive enables zero-pressure accumulation \u2014 products stop with zero contact force between them, preventing product damage in accumulation mode. Zone drive requires one Y2 motor (0.12 to 1.5 kW typically) and one gearbox per zone, making it more complex and expensive than line shaft but providing superior accumulation control.<\/p>\n<\/div>\n

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Motorised Roller (MR)<\/div>\n

Motorised rollers integrate a small DC or three-phase motor inside the roller tube itself, with adjacent rollers driven by a flat polyurethane belt from the motorised roller. Each motorised roller covers a 1 to 3 roller zone. This is the most compact architecture \u2014 there is no external motor or gearbox \u2014 but it is limited to lighter loads (below 100 kg per product). Korea Ever-Power Y2 motors are used in external zone drives as an alternative to motorised rollers for heavier pallet conveyor applications above 100 kg per unit load.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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2. Zone Motor Power Calculation<\/h2>\n
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Roller Conveyor Zone Motor Sizing<\/div>\n
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Given \u2014 Pallet Roller Conveyor Zone:<\/div>\n
Maximum unit load: W = 500 kg (one pallet)
\nZone length: L = 2.0 m (6 rollers at 333 mm pitch)
\nRoller friction factor: \u03bc = 0.05 (steel roller on steel shaft)
\nRoller diameter: d = 76 mm
\nShaft diameter: 20 mm
\nConveyor speed: v = 0.3 m\/s
\nDrive efficiency \u03b7 = 0.85<\/div>\n<\/div>\n
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Calculation:<\/div>\n
Rolling friction force: F = W \u00d7 \u03bc \u00d7 (shaft dia \u00f7 roller dia)
\nF = 500 \u00d7 9.81 \u00d7 0.05 \u00d7 (20\u00f776) = 64.5 N
\nMotor power: P = F \u00d7 v \u00f7 \u03b7 = 64.5 \u00d7 0.3 \u00f7 0.85 = 22.8 W
\nWith service factor 1.15 for accumulation: 26.2 W
\nSelecting per zone: Y2 0.12 kW (120 W) 4-pole, IEC 71<\/strong>
\n(Standard motor size above calculated power)<\/div>\n<\/div>\n<\/div>\n<\/div>\n

For pallet conveyors handling loads above 500 kg, heavy roller bearings with higher friction (\u03bc = 0.08 to 0.12), or conveyors with inclines, recalculate using the actual friction and incline force components. Standard zone motor sizes for roller conveyor applications are 0.12, 0.18, 0.25, 0.37, and 0.55 kW for most pallet and carton conveyor applications. Motors above 0.75 kW per zone indicate either a very heavy load, high speed, or steep incline that should be reviewed against the specific conveyor design.<\/p>\n<\/div>\n

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3. Accumulation Mode and Motor Thermal Rating<\/h2>\n

In accumulation mode, a stopped zone motor continues to spin the drive rollers while the product on top of the zone is stationary \u2014 the product slides on the rollers or the torque limiter between the motor and rollers slips to prevent motor overload. However, if the zone drive is a direct-coupled gearmotor without slip, the motor stalls against the stationary product and draws locked-rotor current, which rapidly overheats the motor winding.<\/p>\n

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Zero-Pressure Accumulation \u2014 Zone Stop<\/div>\n

In a properly designed zero-pressure accumulation system, the zone motor is stopped when the zone sensor detects a product waiting and the downstream zone is occupied. The zone motor drives an empty zone and stops with the zone when a product is detected \u2014 there is no product accumulation against a running drive. Under these conditions, the zone motor operates at S3 intermittent duty with typical CDF of 40 to 60% \u2014 the Y2 motor thermal rating is not challenged because the motor stops cleanly when the zone stops. This is the correct approach and eliminates accumulation stall heating entirely.<\/p>\n<\/div>\n

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Slipping Accumulation \u2014 Motor Must Handle Slip<\/div>\n

In older or simpler roller conveyor systems using line shaft drives with O-ring slip, or zone drives with torque-limiting couplings, the motor continues to run while the product is stationary above a running zone. In this case the motor runs at no-load (if the rollers are slipping on the product), or runs at stall current if the product is gripping the rollers. For stall-mode accumulation, the motor must be rated for S1 continuous at rated torque AND must have an overload relay correctly set for motor stall protection. Apply service factor 1.25 to 1.5 for stall-capable accumulation drives to provide adequate thermal margin.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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4. Conveyor Speed and Drive Gearbox Selection<\/h2>\n
\n\n\n\n\n\n\n\n\n\n
Conveyor Application<\/th>\nBelt Speed<\/th>\nRoller Diameter<\/th>\nRequired Roller rpm<\/th>\nGearbox Ratio (4P)<\/th>\n<\/tr>\n<\/thead>\n
Slow pallet accumulation<\/td>\n0.1 m\/s<\/td>\n108 mm<\/td>\n18 rpm<\/td>\n80:1<\/td>\n<\/tr>\n
Standard pallet conveyor<\/td>\n0.3 m\/s<\/td>\n108 mm<\/td>\n53 rpm<\/td>\n27:1<\/td>\n<\/tr>\n
Fast pallet transfer<\/td>\n0.5 m\/s<\/td>\n108 mm<\/td>\n88 rpm<\/td>\n16:1<\/td>\n<\/tr>\n
Carton conveyor (standard)<\/td>\n0.5 m\/s<\/td>\n50 mm<\/td>\n191 rpm<\/td>\n7.6:1<\/td>\n<\/tr>\n
High-speed sorting conveyor<\/td>\n1.5 m\/s<\/td>\n60 mm<\/td>\n477 rpm<\/td>\n3:1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

For pallet roller conveyors at standard 0.3 m\/s speed, the required roller rpm of 53 at a 108 mm roller diameter is achieved with a helical inline gearbox at approximately 27:1 ratio. Korea Ever-Power R series inline helical gearboxes in the 0.37 to 2.2 kW range are compatible with the Y2 IEC 71 to 100 frame motors and provide ratios from 3.7:1 to 185:1 \u2014 covering the full speed range of industrial roller conveyor applications. For very slow accumulation at 0.1 m\/s, the 80:1 ratio falls within the NMRV worm gearbox range, making the NMRV a compact alternative to the helical gearbox for slow pallet accumulation zones.<\/p>\n<\/div>\n

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5. Compact Mounting Within the Conveyor Frame<\/h2>\n
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Motor Width vs Conveyor Frame Width<\/div>\n

The zone drive motor and gearbox must fit within the lateral envelope of the conveyor frame, typically 600 to 1,200 mm wide for a pallet conveyor. The motor is normally mounted below the conveyor frame between the two side rails. Korea Ever-Power Y2 motors in IEC 71 (shaft height 71 mm) to IEC 100 (shaft height 100 mm) are compact enough to fit within standard pallet conveyor frame widths when mounted with the shaft axis parallel to the conveyor travel direction. Confirm the motor frame dimensions against the available space in the conveyor design before specifying the motor frame size.<\/p>\n<\/div>\n

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Bevel-Helical Gearbox for Right-Angle Drive<\/div>\n

When the motor must be mounted with its shaft axis perpendicular to the roller axis (for example, in a narrow conveyor where the motor must be installed between adjacent rollers from the side), a bevel-helical gearbox provides the 90-degree angle change at high efficiency (92 to 96%) while keeping the overall drive unit compact. Korea Ever-Power K series bevel-helical gearboxes with IEC B5 input flange connect directly to the Y2 motor and provide right-angle output at ratios from 8.1:1 to 176:1 \u2014 ideal for roller conveyor zone drives requiring right-angle mounting.<\/p>\n<\/div>\n

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IP54 for Warehouse and Distribution Centre<\/div>\n

Standard industrial roller conveyor motors in warehouse and distribution centre environments only require IP54 protection \u2014 the environment is clean and dry. IP55 is recommended for conveyors in wet areas such as cold store dock levellers, beverage factory inbound and outbound conveyors, or outdoor covered dock areas where rain splash is possible. Washdown conveyors in food processing areas require BXG IP69K stainless steel motors rather than standard Y2 motors.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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6. Korea Ever-Power Y2 Series for Roller Conveyor Drives<\/h2>\n
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The Korea Ever-Power Y2 series in compact IEC 71 to 132 frames covers the 0.12 to 5.5 kW range required for roller conveyor zone drives, line shaft drives, and accumulation conveyor motors. The 4-pole Y2 at 1,450 rpm is the standard configuration for all roller conveyor zone drive applications \u2014 paired with inline helical, right-angle bevel-helical, or NMRV worm gearboxes depending on the layout and speed requirement. For conveyor systems requiring zone VFD speed control, specify the YVF2 inverter-duty motor in place of the standard Y2 for reliable operation across the full zone speed range. The complete Y2 range is in the three-phase motor section<\/a>. Contact Korea Ever-Power<\/a> for conveyor zone drive motor and gearbox package selection.<\/p>\n<\/div>\n

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Y2 \u2014 Roller Conveyor Zone Motor<\/div>\n\n\n\n\n\n\n\n\n\n\n
Power range<\/td>\n0.12\u20135.5 kW<\/td>\n<\/tr>\n
Frame sizes<\/td>\nIEC 71, 80, 90, 100, 112, 132<\/td>\n<\/tr>\n
Standard poles<\/td>\n4-pole (1,450 rpm)<\/td>\n<\/tr>\n
Efficiency<\/td>\nIE3<\/td>\n<\/tr>\n
IP rating<\/td>\nIP54 standard<\/td>\n<\/tr>\n
Service factor<\/td>\n1.15 (accumulation)<\/td>\n<\/tr>\n
Gearbox option<\/td>\nR inline \/ K bevel \/ NMRV<\/td>\n<\/tr>\n
Duty<\/td>\nS1 \/ S3 depending on zone control<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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7. Roller Conveyor Applications<\/h2>\n\n\n\n
\"Y2<\/p>\n
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Pallet Accumulation Conveyor<\/div>\n

Pallet conveyor systems in distribution centres, manufacturing plants, and cold stores use zone-drive roller conveyors for pallet transport, accumulation at docking stations, and transfer to AS\/RS infeed. Y2 0.12 to 0.55 kW per zone, 4-pole, paired with inline helical gearbox at 20:1 to 80:1 for 0.1 to 0.3 m\/s pallet speed. Zero-pressure accumulation control through zone photocell sensors and zone motor starters managed by conveyor PLC.<\/p>\n<\/div>\n<\/td>\n

\"Y2<\/p>\n
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Carton Sortation Conveyor<\/div>\n

High-speed carton sortation systems in e-commerce fulfilment and postal sorting use roller conveyors at 0.5 to 1.5 m\/s with short zone drive motors at 0.12 to 0.37 kW, 4-pole. At high throughput (3,000 to 10,000 cartons\/hour), the zone start-stop cycling approaches the Y2 motor thermal limit \u2014 specify S3 40% duty and confirm motor starting frequency against the Y2 maximum starts per hour specification before ordering.<\/p>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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Line Shaft Live Roller<\/div>\n

Single Y2 0.37 to 2.2 kW per 10 to 20 m line shaft section driving all rollers through O-rings. Simple and reliable for continuous non-accumulation transport. Common in manufacturing lines where products move at constant flow. Service factor 1.0 for non-accumulation service.<\/p>\n<\/div>\n

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Cold Store Roller Conveyor<\/div>\n

Roller conveyors in freezer stores (-25 to -18\u00b0C) for pallet and tote transport. Y2 0.12 to 0.55 kW, 4-pole, IP55. Low-temperature bearing grease required. Class F insulation on stator winding confirmed for cold ambient. Specify cold store option when ordering.<\/p>\n<\/div>\n

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Assembly Line Roller Track<\/div>\n

Powered roller tracks in automotive and electronics assembly carry work carriers (jigged pallets or trolleys) between assembly stations. Y2 0.12 to 0.37 kW per zone, 4-pole, paired with right-angle bevel-helical gearbox for compact installation between track rails. Zone control stops carrier at each assembly station.<\/p>\n<\/div>\n

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Inclined Roller Conveyor<\/div>\n

Inclined roller conveyors at 5 to 15 degrees for level change between conveyor sections. Y2 0.18 to 1.1 kW per zone depending on incline angle, load weight, and zone length. Apply incline gravity force component: F-incline = W \u00d7 g \u00d7 sin(angle). For steep inclines, anti-rollback backstop or Y2EJ brake motor required.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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\"Korea<\/p>\n

Motor Production<\/div>\n<\/div>\n
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\"Korea<\/p>\n

Performance Test<\/div>\n<\/div>\n
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\"Korea<\/p>\n

Stock Available<\/div>\n<\/div>\n
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\"Korea<\/p>\n

Fast Global Delivery<\/div>\n<\/div>\n<\/div>\n

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8. Frequently Asked Questions<\/h2>\n
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How many times can the zone motor start per hour in a high-throughput carton sortation conveyor?<\/div>\n<\/div>\n
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The maximum starts per hour for a Y2 motor depends on the motor power rating and the ratio of starting to running current. For typical conveyor zone motors in the 0.12 to 0.55 kW range, the locked-rotor current is 4.5 to 5.5 times rated current, and the starting energy per start is relatively low due to the small motor inertia and light load. As a general guideline for Y2 motors in these power ratings, up to 60 to 120 cold starts per hour or 30 to 60 hot starts per hour (from rated operating temperature) can be sustained without thermal damage. For high-throughput sortation systems where zone motors start more than 60 times per hour, specify the Y2 motor at S3 40% duty at the rated cycle rate and confirm the thermal limit with Korea Ever-Power before ordering. If the start frequency requirement exceeds the motor capability, options include increasing the zone length (fewer starts per motor), using a torque-limiting coupling to allow slipping accumulation without motor stops, or using a VFD with the zone motor to ramp up and down without full locked-rotor starting current.<\/p>\n<\/div>\n<\/div>\n

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Should I use NMRV worm gearbox or inline helical gearbox for a pallet roller conveyor zone drive?<\/div>\n<\/div>\n
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For standard pallet roller conveyors at 0.3 m\/s requiring 27:1 to 40:1 gear ratio, both options work well. The NMRV worm gearbox is more compact (right-angle configuration saves installation space), provides self-locking for inclined zones without a separate backstop, and is lower in initial cost. However, the NMRV at these ratios has an efficiency of 65 to 72% compared to 95 to 97% for an inline helical gearbox at the same ratio \u2014 the helical option reduces motor energy consumption by approximately 30% at the same output shaft torque. For a large roller conveyor system with many zone drives running continuously for 16 hours per day, the helical gearbox energy saving can justify the higher initial cost within 2 to 3 years. For slower conveyors at 0.1 m\/s requiring 70:1 to 100:1 ratios, the NMRV is the natural choice as compact single-stage helical gearboxes are not available at these ratios without a two-stage arrangement that increases cost and size.<\/p>\n<\/div>\n<\/div>\n

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Can I use a single larger Y2 motor instead of multiple small zone motors to reduce cost?<\/div>\n<\/div>\n
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A single large motor driving the full conveyor (line shaft drive) is significantly lower in capital cost than a zone drive with one motor per zone \u2014 but it loses the accumulation zone control capability. With a line shaft drive, all zones run simultaneously at the same speed; there is no zone stop capability. This means accumulation is achieved only by allowing products to slide on the rollers (slip accumulation) rather than by stopping the zone. For applications where products must be stopped without contact between them (zero-pressure accumulation) \u2014 such as accumulating glass bottles, fragile electronics, or hot products that must not touch \u2014 zone drive with individual zone motors is mandatory regardless of cost. For applications where product contact during accumulation is acceptable (stable pallets, corrugated cartons, bulk bags), the line shaft drive with a single Y2 motor and O-ring slip accumulation is a cost-effective alternative. The decision between line shaft and zone drive should be based on the product fragility and accumulation control requirement, not on motor cost alone.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Korea Ever-Power \u00b7 Y2 Series \u00b7 Roller Conveyor Zone Drive Motors<\/div>\n

Need Zone Drive Motors for Your Roller Conveyor System?<\/h2>\n

Korea Ever-Power Y2 series: 0.12\u20135.5 kW, IEC 71\u2013132, IE3, IP54, 4-pole, compatible with inline helical, bevel-helical, and NMRV gearboxes. In stock for immediate delivery.<\/p>\n

View Y2 Motor Range<\/a><\/p>\n<\/div>\n<\/div>\n

Edited by Cxm<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

Korea Ever-Power \u00b7 Y2 Series \u00b7 Roller Conveyor Drive Guide Electric Motor for Roller Conveyor Drives: Zone Drive, Accumulation and Live Roller Guide Roller conveyors for pallet, case, and tote transport differ from belt conveyors in one important way: the driven element is a series of independent rollers rather than a continuous belt, allowing individual […]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[28],"tags":[],"class_list":["post-204","post","type-post","status-publish","format-standard","hentry","category-industrial-electric-motor"],"_links":{"self":[{"href":"https:\/\/industrialelectricmotor.net\/zh\/wp-json\/wp\/v2\/posts\/204","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/industrialelectricmotor.net\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/industrialelectricmotor.net\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/industrialelectricmotor.net\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/industrialelectricmotor.net\/zh\/wp-json\/wp\/v2\/comments?post=204"}],"version-history":[{"count":1,"href":"https:\/\/industrialelectricmotor.net\/zh\/wp-json\/wp\/v2\/posts\/204\/revisions"}],"predecessor-version":[{"id":206,"href":"https:\/\/industrialelectricmotor.net\/zh\/wp-json\/wp\/v2\/posts\/204\/revisions\/206"}],"wp:attachment":[{"href":"https:\/\/industrialelectricmotor.net\/zh\/wp-json\/wp\/v2\/media?parent=204"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/industrialelectricmotor.net\/zh\/wp-json\/wp\/v2\/categories?post=204"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/industrialelectricmotor.net\/zh\/wp-json\/wp\/v2\/tags?post=204"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}