Overhead crane is a lifting equipment that spans the width of the workshop, warehouse or material yard for material lifting. The bridge runs longitudinally along the rails laid on the elevated runway beams, which can make full use of the space under the bridge without being hindered by ground equipment. As one of the most widely used heavy lifting equipment, overhead cranes come in a wide varieties to suit different facility conditions and lifting requirements.
Overhead Crane Models And Specifications
Single girder overhead cranes:
AQ-LD hook single girder overhead crane
AQ-LX single girder underhung crane
AQ-HD European standard single girder overhead crane
AQ-LDY single girder casting crane
AQ-LDZ single girder grab crane
AQ-LB single girder explosion proof crane
| Technical Parameter of AQ-LD Single Girder Overhead Crane | |||||||||
| Capacity | t | 1 | 2 | 3 | 5 | 10 | 16 | 20 | 25 |
| Span | S(m) | 7.5~31.5 | 7.5~31.5 | 7.5~31.5 | 7.5~31.5 | 7.5~31.5 | 7.5~31.5 | 7.5~31.5 | 7.5~25.5 |
| Lifting height | m | 6~30 | 6~30 | 6~30 | 6~30 | 9~30 | 9~30 | 9~30 | 9~30 |
| Lifting speed | m/min | 8（0.8/8） | 8（0.8/8） | 8（0.8/8） | 8（0.8/8） | 7（0.7/7） | 3.5（0.35/3.5） | 3.3（0.33/3.3） | 3（0.3/3） |
| Trolley speed | m/min | 20(30) | 20(30) | 20(30) | 20(30) | 20(30) | 18 | 14 | 16 |
| Crane speed | m/min | 20(30) | 20(30) | 20(30) | 20(30) | 20(30) | 20(30) | 20(30) | 20(30) |
| Work duty | A3~A4 | A3~A4 | A3~A4 | A3~A4 | A3~A4 | A3~A4 | A3~A4 | A3~A4 | |
| Track type | P18 | P18 P24 | P24 | P24 | P24 P30 | P30 P38 | P38 P43 | P38 P43 | |
| Technical Parameter of AQ-LX Single Girder Suspension Crane | |||||||
| Capacity | t | 0.5 | 1 | 2 | 3 | 5 | 10 |
| Span | S(m) | 3~22.5 | 3~22.5 | 3~22.5 | 3~22.5 | 3~22.5 | 3~22.5 |
| Lifting height | m | 6~30 | 6~30 | 6~30 | 6~30 | 6~30 | 9~30 |
| Lifting speed | m/min | 8（0.8/8） | 8（0.8/8） | 8（0.8/8） | 8（0.8/8） | 8（0.8/8） | 7（0.7/7） |
| Trolley speed | m/min | 20(30) | 20(30) | 20(30) | 20(30) | 20(30) | 20(30) |
| Crane speed | m/min | 20(30) | 20(30) | 20(30) | 20(30) | 20(30) | 20(30) |
| Work duty | A3~A4 | A3~A4 | A3~A4 | A3~A4 | A3~A4 | A3~A4 | |
| Technical Parameter of AQ-HD European Type Single Girder Overhead Crane | |||||
| Capacity | t | 1 | 2 | 3.2 | 5 |
| Span | S(m) | 7.5~28.5 | 7.5~28.5 | 7.5~28.5 | 7.5~28.5 |
| Lifting height | m | 6~18 | 6~18 | 6~18 | 6~18 |
| Lifting speed | m/min | 0.8/5 | 0.8/5 | 0.8/5 | 0.8/5 |
| Trolley speed | m/min | 2~20 | 2~20 | 2~20 | 2~20 |
| Crane speed | m/min | 3~30 | 3~30 | 3~30 | 3~30 |
| Work duty | A5 | A5 | A5 | A5 | |
| Track type | P18 P24 | P18 P24 | P24 | P24 | |
| Capacity | t | 10 | 12.5 | 16 | 20 |
| Span | S(m) | 7.5~28.5 | 7.5~28.5 | 7.5~28.5 | 7.5~28.5 |
| Lifting height | m | 6~18 | 6~18 | 6~18 | 6~18 |
| Lifting speed | m/min | 0.8/5 | 0.66/4 | 0.66/4 | 0.53/3.4 |
| Trolley speed | m/min | 2~20 | 2~20 | 2~20 | 2~20 |
| Crane speed | m/min | 3~30 | 3~30 | 3~30 | 3~30 |
| Work duty | A5 | A5 | A5 | A5 | |
| Track type | P30 | P30 | P30 P38 | P30 P38 |
| Technical Parameter of AQ-LB Model Explosion-proof Electric Single Girder Crane | ||||||||
| Capacity | t | 1 | 2 | 3 | 5 | 10 | 16 | 20 |
| Span | S(m) | 7.5~31.5 | 7.5~31.5 | 7.5~31.5 | 7.5~31.5 | 7.5~31.5 | 7.5~31.5 | 7.5~31.5 |
| Lifting height | m | 6~30 | 6~30 | 6~30 | 6~30 | 9~30 | 9~30 | 9~30 |
| Lifting speed | m/min | 8（0.8/8） | 8（0.8/8） | 8（0.8/8） | 8（0.8/8） | 7（0.7/7） | 3.5（0.35/3.5） | 3.3（0.33/3.3） |
| Trolley speed | m/min | 20(30) | 20(30) | 20(30) | 20(30) | 20(30) | 18 | 14 |
| Crane speed | m/min | 20(30) | 20(30) | 20(30) | 20(30) | 20(30) | 20(30) | 20(30) |
| Work duty | A3~A4 | A3~A4 | A3~A4 | A3~A4 | A3~A4 | A3~A4 | A3~A4 | |
| Explosion-proof Grade | ExdⅡBT4、ExdⅡCT4 | |||||||
| Track type | P18 | P18 P24 | P24 | P24 | P24 P30 | P30 P38 | P30 P38 | |
| Technical Parameter of AQ-LDZ Electric Single Girder grab Crane | |||||
| Capacity | t | 2 | 3 | 5 | 10 |
| Span | S(m) | 4.5-28.5 | 4.5-28.5 | 4.5-28.5 | 4.5-28.5 |
| Lifting height | m | 6~16 | 6~16 | 6~16 | 6~13 |
| Lifting speed | m/min | 16 | 16 | 16 | 14 |
| Trolley speed | m/min | 20(30) | 20(30) | 20(30) | 20(30) |
| Crane speed | m/min | 20(30) | 20(30) | 20(30) | 20(30) |
| Grab volume | m³ | 0.5 | 0.5 | 0.75 | 1 |
| Work duty | A3~A4 | A3~A4 | A3~A4 | A3~A4 | |
| Track type | P18 P24 | P24 | P24 | P24 P30 | |
| Technical Parameter of AQ-LDY Metallurgy Electric Single Girder Overhead Crane | ||||||
| Capacity | t | 1 | 2 | 3 | 5 | 10 |
| Span | S(m) | 7.5~31.5 | 7.5~31.5 | 7.5~31.5 | 7.5~31.5 | 7.5~31.5 |
| Lifting height | m | 6~20 | 6~20 | 6~20 | 6~20 | 6~20 |
| Lifting speed | m/min | 8（2/8） | 8（2/8） | 8（2/8） | 8（2/8） | 7（1.75/7） |
| Trolley speed | m/min | 20(30) | 20(30) | 20(30) | 20(30) | 20(30) |
| Crane speed | m/min | 20(30) | 20(30) | 20(30) | 20(30) | 20(30) |
| Work duty | A6 | A6 | A6 | A6 | A6 | |
| Track type | P18 P24 | P18 P24 | P24 | P24 | P24 P30 | |
Double girder overhead cranes:
AQ-QD hook double girder overhead crane
AQ-LH hoist double girder overhead crane
AQ-QB double girder explosion proof overhead crane
AQ-QZ double girder grab bucket crane
AQ-QC magnetic overhead crane
AQ-QDY double girder casting crane
AQ-NLH European standard double girder overhead crane
| Technical Parameter of AQ-QD Double Girder Overhead Crane | |||||||
| Capacity | t | 5 | 10 | 16 | 20 | 32 | 50 |
| Span | S(m) | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 |
| Lifting height | m | 6~16 | 6~16 | 6~16 | 6~16 | 6~18 | 6~16 |
| Lifting speed | m/min | 11.5 | 8.5 | 7.9 | 7.2 | 6 | 6 |
| Trolley speed | m/min | 37.2 | 37.4 | 40.1 | 40 | 37 | 31.3 |
| Crane speed | m/min | 70.6 | 70.6 | 74.3 | 75.1 | 64.9 | 58.5 |
| Work duty | A3~A7 | A3~A7 | A3~A7 | A3~A7 | A3~A7 | A3~A7 | |
| Track type | P38 | P38 P43 | P43 | P43 | QU70 | QU80 | |
| Capacity | t | 75 | 100 | 125 | 160 | 200 | 250 |
| Span | S(m) | 10.5~31.5 | 13~31 | 13~31 | 13~31 | 13~31 | 13~31 |
| Lifting height | m | 6~20 | 6~20 | 6~20 | 6~22 | 6~20 | 6~20 |
| Lifting speed | m/min | 3.9 | 3.1 | 3.9 | 3.5 | 2.6 | 2.2 |
| Trolley speed | m/min | 31.3 | 33.6 | 33 | 40 | 32 | 32 |
| Crane speed | m/min | 61 | 61.8 | 62.3 | 68 | 48 | 50 |
| Work duty | A3~A7 | A3~A7 | A3~A7 | A3~A7 | A3~A7 | A3~A7 | |
| Track type | QU100 | QU100 | QU100 | QU120 | QU120 | QU120 |
| Capacity | t | 300 | 350 | 400 | 450 |
| Span | S(m) | 13~31 | 13~31 | 13~31 | 13~31 |
| Lifting height | m | 6~24 | 6~24 | 6~24 | 6~24 |
| Lifting speed | m/min | 2.4 | 2.2 | 2.6 | 2.1 |
| Trolley speed | m/min | 28 | 28 | 31 | 27 |
| Crane speed | m/min | 42 | 42 | 45 | 42 |
| Work duty | A3~A7 | A3~A7 | A3~A7 | A3~A7 | |
| Track type | QU120 | QU120 | QU120 | QU120 |
| Technical Parameter of AQ-QDX European style Double Girder Overhead Crane | |||||||
| Capacity | t | 5 | 10 | 16 | 20 | 32 | 50 |
| Span | S(m) | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 |
| Lifting height | m | 6~18 | 6~18 | 6~18 | 6~18 | 6~16 | 6~16 |
| Lifting speed | m/min | 1.07~10.7 | 0.81~8.1 | 0.73~7.3 | 0.58~5.8 | 0.49~4.9 | 0.4~4 |
| Trolley speed | m/min | 3.3~33 | 3.3~33 | 3.2~32 | 3.2~32 | 3.36~33.6 | 2.9~29 |
| Crane speed | m/min | 6.8~68 | 6.8~68 | 5.4~54 | 5.4~54 | 5.6~56 | 5.4~54 |
| Work duty | A3~A5 | A3~A5 | A3~A5 | A3~A5 | A3~A5 | A3~A5 | |
| Track type | P38 | P38 P43 | P43 | P43 | QU70 | QU80 | |
| Capacity | t | 75 | 100 | 160 | 200 | 250 | 320 |
| Span | S(m) | 10.5~31.5 | 13~31 | 13~31 | 13~31 | 13~31 | 13~31 |
| Lifting height | m | 6~24 | 6~24 | 6~24 | 6~20 | 6~20 | 6~24 |
| Lifting speed | m/min | 0.37~3.7 | 0.32~3.2 | 0.25~2.5 | 0.24~2.4 | 0.21~2.1 | 0.2~2 |
| Trolley speed | m/min | 2.92~29.2 | 2.9~29 | 2.65~26.5 | 2.5~25 | 2.5~25 | 2.4~24 |
| Crane speed | m/min | 4.8~48 | 5.26~52.6 | 4.67~46.7 | 5.2~52 | 5.2~52 | 4.15~41.5 |
| Work duty | A3~A5 | A3~A5 | A3~A5 | A3~A5 | A3~A5 | A3~A5 | |
| Track type | QU100 | QU100 | QU120 | QU120 | QU120 | QU120 |
| Technical Parameter of AQ-LH Model Electric Hoist Bridge Crane | |||||
| Capacity | t | 5 | 10 | 16 | 20 |
| Span | S(m) | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 |
| Lifting height | m | 6~30 | 9~30 | 9~30 | 9~30 |
| Lifting speed | m/min | 8（0.8/8） | 7（0.7/7） | 3.5（0.35/3.5） | 3.3（0.33/3.3） |
| Trolley speed | m/min | 20(30) | 20(30) | 20(30) | 20(30) |
| Crane speed | m/min | 20(43) | 20(43) | 20(43) | 20(43) |
| Work duty | A3~A4 | A3~A4 | A3~A4 | A3~A4 | |
| Track type | P30 | P30 P38 | P38 | P38 P43 | |
| Capacity | t | 25 | 32 | 40 | 50 |
| Span | S(m) | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 |
| Lifting height | m | 9~24 | 9~24 | 9~20 | 9~20 |
| Lifting speed | m/min | 3（0.3/3） | 3（0.3/3） | 2.3（0.23/2.3） | 1.8（0.18/1.8） |
| Trolley speed | m/min | 20(30) | 20(30) | 20(30) | 20(30) |
| Crane speed | m/min | 20(43) | 20(43) | 20(43) | 20(43) |
| Work duty | A3~A4 | A3~A4 | A3~A4 | A3~A4 | |
| Track type | P43 | P43 | P43 QU70 | P43 QU70 |
| Technical Parameter of AQ-NLH European Type Electric Hoist Overhead Crane | |||||
| Capacity | t | 5 | 10 | 16 | 20 |
| Span | S(m) | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 |
| Lifting height | m | 6~18 | 6~18 | 6~18 | 6~18 |
| Lifting speed | m/min | 0.8/5 | 0.8/5 | 0.66/4 | 0.53/3.4 |
| Trolley speed | m/min | 2~20 | 2~20 | 2~20 | 2~20 |
| Crane speed | m/min | 3~30 | 3~30 | 3~30 | 3~30 |
| Work duty | A5 | A5 | A5 | A5 | |
| Track type | P30 | P30 P38 | P38 | P38 P43 | |
| Capacity | t | 32 | 50 | 63 | 80 |
| Span | S(m) | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 |
| Lifting height | m | 6~18 | 6~18 | 6~18 | 6~18 |
| Lifting speed | m/min | 0.6/2.6 | 0.4~2.4 | 0.4~2.4 | 0.4~2.4 |
| Trolley speed | m/min | 2~20 | 2~20 | 2~20 | 2~20 |
| Crane speed | m/min | 3~30 | 3~30 | 3~30 | 3~30 |
| Work duty | A5 | A5 | A5 | A5 | |
| Track type | P43 | P43 QU70 | QU70 | QU80 |
| Technical Parameter of AQ-QB Explosion Proof Overhead Crane | ||||||||
| Capacity | t | 5 | 10 | 16 | 20 | 32 | 50 | 75 |
| Span | S(m) | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 |
| Lifting height | m | 6~16 | 6~16 | 6~16 | 6~16 | 6~18 | 6~16 | 6~20 |
| Lifting speed | m/min | 5 | 5 | 4.2 | 4.2 | 4.1 | 3 | 1.9 |
| Trolley speed | m/min | 19.6 | 20.5 | 20.5 | 20.5 | 20 | 19.1 | 10.5 |
| Crane speed | m/min | 22.3 | 22.3 | 19 | 19 | 17 | 19.4 | 15.4 |
| Work duty | A3~A4 | A3~A4 | A3~A4 | A3~A4 | A3~A4 | A3~A4 | A3~A4 | |
| Explosion-proof Grade | ExdⅡBT4、ExdⅡCT4 | |||||||
| Track type | P38 | P38 P43 | P43 | P43 | P43 QU70 | QU80 | QU100 | |
| Technical Parameter of AQ-QC Electromagnetic Overhead Crane | |||||||
| Capacity | t | 5 | 10 | 16 | 20 | 32 | 50 |
| Span | S(m) | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 |
| Lifting height | m | 6~16 | 6~16 | 6~16 | 6~16 | 6~18 | 6~16 |
| Lifting speed | m/min | 15.5 | 13.3 | 13 | 9.7 | 9.5 | 7.8 |
| Trolley speed | m/min | 37.2 | 37.4 | 40.1 | 40 | 37 | 31.3 |
| Crane speed | m/min | 70.6 | 70.6 | 74.3 | 75.1 | 64.9 | 58.5 |
| Work duty | A5~A7 | A5~A7 | A5~A7 | A5~A7 | A5~A7 | A5~A7 | |
| Track type | P38 | P38 P43 | P43 | P43 | QU70 | QU80 | |
| Technical Parameter of AQ-QZ Grab Bucket Overhead Crane | |||||
| Capacity | t | 5 | 10 | 16 | 20 |
| Span | S(m) | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 |
| Lifting height | m | 6~18 | 6~18 | 6~26 | 6~26 |
| Lifting speed | m/min | 31.3 | 29.7 | 32.7 | 30.7 |
| Trolley speed | m/min | 44.6 | 31.7 | 31.1 | 31.1 |
| Crane speed | m/min | 93.6 | 86.5 | 75.1 | 76.9 |
| Work duty | A5~A7 | A5~A7 | A5~A7 | A5~A7 | |
| Track type | P43 QU70 | P43 QU70 | QU70 | QU70 | |
| Technical Parameter of AQ-YZ Hook Casting Overhead Crane | |||||||
| Capacity | t | 5 | 10 | 16 | 20 | 32 | 50 |
| Span | S(m) | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 |
| Lifting height | m | 6~16 | 6~16 | 6~16 | 6~16 | 6~16 | 6~16 |
| Lifting speed | m/min | 12.5 | 13 | 10.8 | 9.9 | 9.7 | 7.6 |
| Trolley speed | m/min | 39.5 | 44.9 | 44.6 | 45.9 | 43.5 | 39.3 |
| Crane speed | m/min | 118.6 | 114.9 | 103.5 | 103.5 | 88 | 77.5 |
| Work duty | A6~A8 | A6~A8 | A6~A8 | A6~A8 | A6~A8 | A6~A8 | |
| Track type | P38 | P38 P43 | P43 QU70 | P43 QU70 | QU70 | QU80 | |
| Capacity | t | 74 | 100 | 125 | 140 | 160 | 180 |
| Span | S(m) | 13~31 | 13~31 | 13~31 | 13~31 | 13~31 | 13~31 |
| Lifting height | m | 6~20 | 6~20 | 6~20 | 6~22 | 6~22 | 6~24 |
| Lifting speed | m/min | 6.4 | 7.5 | 7.5 | 6.84 | 6 | 7.2 |
| Trolley speed | m/min | 37.2 | 38 | 38 | 38 | 37 | 38 |
| Crane speed | m/min | 77 | 77 | 79.7 | 73 | 77.8 | 86 |
| Work duty | A6~A8 | A6~A8 | A6~A8 | A6~A8 | A6~A8 | A6~A8 | |
| Track type | QU100 | QU120 | QU120 | QU120 | QU120 | QU120 |
| Capacity | t | 200 | 225 | 240 | 280 | 320 |
| Span | S(m) | 13~31 | 13~31 | 13~31 | 13~31 | 13~31 |
| Lifting height | m | 6~24 | 6~24 | 6~24 | 6~24 | 6~24 |
| Lifting speed | m/min | 8 | 8 | 10 | 10 | 9 |
| Trolley speed | m/min | 40 | 40 | 38 | 36 | 36 |
| Crane speed | m/min | 86 | 87 | 87 | 76 | 63 |
| Work duty | A6~A8 | A6~A8 | A6~A8 | A6~A8 | A6~A8 | |
| Track type | QU120 | QU120 | QU120 | QU120 | QU120 |
| Technical Parameter of AQ-QL Carrier Beam Overhead Crane | |||||
| Capacity | t | 7.5+7.5 | 10+10 | 16+16 | 20+20 |
| Span | S(m) | 10.5~34.5 | 10.5~34.5 | 10.5~34.5 | 10.5~34.5 |
| Lifting height | m | 6~16 | 6~16 | 6~16 | 6~16 |
| Lifting speed | m/min | 13.2 | 12.6 | 12.5 | 11.7 |
| Trolley speed | m/min | 36.7 | 36.2 | 37 | 31.3 |
| Crane speed | m/min | 74.3 | 75.1 | 64.9 | 58.5 |
| Work duty | A5~A7 | A5~A7 | A5~A7 | A5~A7 | |
| Track type | P43 | P43 | QU70 | QU80 | |
| Technical Parameter of QE Double Trolley Overhead Crane | |||||||
| Capacity | t | 5+5 | 10+10 | 16+16 | 20+20 | 32+32 | 50+50 |
| Span | S(m) | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 |
| Lifting height | m | 6~16 | 6~16 | 6~16 | 6~16 | 6~18 | 6~16 |
| Lifting speed | m/min | 11.5 | 8.5 | 7.9 | 7.2 | 6 | 5.9 |
| Trolley speed | m/min | 37.2 | 37.4 | 40.1 | 40 | 37 | 31.3 |
| Crane speed | m/min | 70.6 | 75.1 | 64.9 | 59.1 | 59.1 | 61.8 |
| Work duty | A3~A7 | A3~A7 | A3~A7 | A3~A7 | A3~A7 | A3~A7 | |
| Track type | P38 P43 | P43 | P43 QU70 | P43 QU70 | QU80 | QU100 | |
| Capacity | t | 75+75 | 100+100 | 160+160 | 200+200 | 250+250 | 320+320 |
| Span | S(m) | 13~34 | 13~34 | 13~34 | 13~34 | 13~34 | 13~34 |
| Lifting height | m | 6~20 | 6~20 | 6~22 | 6~20 | 6~20 | 6~24 |
| Lifting speed | m/min | 4.7 | 3.9 | 3.5 | 3.5 | 2.2 | 2.3 |
| Trolley speed | m/min | 38.2 | 33.9 | 22.5 | 29 | 28 | 28 |
| Crane speed | m/min | 68 | 48 | 42 | 45 | 42 | 40 |
| Work duty | A3~A7 | A3~A7 | A3~A7 | A3~A7 | A3~A7 | A3~A7 | |
| Track type | QU120 | QU120 | QU120 | QU120 | QU120 | QU120 |
Overhead Crane Parameters
The main technical parameters of the overhead crane are lifting capacity, span, lifting height, running speed, lifting speed, working duty, etc.
Lifting capacity
Lifting capacity, also known as rated lifting capacity, refers to the maximum allowable lifting load of the crane, in tons (t).
The lifting capacity of the overhead crane can be 5t, 10t (single hook), 15t/3t, 20t/5t, 30t/5t, 50t/10t, 75t/20t, 100t/20t, 125t/20t, 150t/30t, 200t/30t, 250t/30t (double hook) and many others. The numerator in the number is the primary hook weight, and the denominator is the secondary hook weight. For example, 15t/3t crane means that the rated lifting capacity of the main hook is 15t, and the auxiliary hook is 3t.
Bridge cranes can be divided into three grades according to the lifting weight: 5~10t small overhead crane, 10~50t medium overhead crane, and more than 50t heavy duty overhead crane.
Span
The span of a bridge crane refers to the distance between the center lines of the wheels at both ends of the main beam of the crane, that is, the distance between the center lines of the cart tracks, in meters (m).
Overhead crane spans can be 10.5m, 13.5m, 16.5m, 19.5m, 22.5m, 25.5m, 28.5m, 31.5m and many others.
Lifting height
Lifting height refers to the distance between the upper limit position and the lower limit position of a crane’s hook or grabbing device, such as grab, electromagnetic chuck, etc.
The lifting height of an overhead crane can be 12m, 16m, 12m/14m, 12m/18m, 16m/18m, 19m/21m, 20m/22m, 21m/23m, 22m/26m, 24m/26m and so on. The numerator in the number is the primary hook lifting height, and the denominator is the auxiliary hook lifting height.
Running speed
Running speed refers to the speed of running mechanisms of the crane and the trolley.
Lifting speed
Lifting speed refers to the speed at which the motor of the lifting mechanism raises the heavy object at the rated speed, which is determined according to the properties of heavy objects, weight, and lifting requirements.
Work duty
Work duty of the crane is determined according to its load rate and busyness, and can be divided into four types: light, medium, heavy and extra heavy.
- Light duty: used in workplaces for light service. For example, overhead cranes used in hydropower stations and power plants for installation and maintenance purposes.
- Medium: often works under different loads, the speed is medium, and the work is not too heavy, such as the cranes used in general machining workshops and assembly workshops.
- Heavy duty: often works under heavy load, such as cranes used in metallurgy and foundry workshops.
- Extra heavy: often works at rated load, such as bridge cranes for metallurgy.
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If you are looking to purchase a new overhead crane, please feel free to contact us and let us know your requirements in details, including the rated load capacity, span of the crane, lifting height, type of material or load, crane working environment, etc. According to the information you provide, Aicrane professionals will help you choose the right overhead crane system for your facility. To get the latest price of overhead crane, send your inquiry today!
