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SAJ serials pinion and cone progressive safety device is the most important safety  device in the pinion and rack builders hoist, which can prevent the cage running  over speed, and effectively reduce the cage dropping accident.
The safety devices developed by Shanghai Research Institute of Building Sciences has passed through the evaluation presided by the Ministry of Construction in 1989. The specialists at the meeting made a high appraisal of reasonable compact structure, stable action speed, highly accurate calibration, safe and reliable, braking smoothly and light weight etc. features of the safety devices.Â
The devices was recommended as  hightech products developed in National Eighth Five Year Plan by the Ministry of Construction, and also won the Shanghai excellent new product prize.
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Characteristics
Model
Rated Loading
Lifting Speed
Motor Power
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Double Cabin
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Low-speed
SC200/200D
 2×2000kg
0-33m/min
2×(3×11kw)
SC100/100D
 2×1000kg
0-33m/min
2×(2×11kw)
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Mid-speed
SC200/200Z
 2×2000kg
0-55m/min
2×(2×11kw)
SC100/100Z
 2×1000kg
0-55m/min
2×(2×11kw)
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SingleÂ
Cabin
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Low-speed
SC200D
    2000kg
0-33m/min
3×11kw
SC100D
    1000kg
0-33m/min
2×11kw
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Mid-speed
SC200Z
    2000kg
0-55m/min
2×11kw
SC100Z
    1000kg
0-55m/min
2×11kw
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 The anti-drop safety devcie is consistent with China National Standards; also reach Hong Kong COP Standards and Europe EN Standards.
SAJ40-1.2 is one of safety devices for SC200/200. Other safety device including:
Top and bottom limit, cage door electrical and mechanical interlock safety device, landing door electrica and mechanical interlock, anti-exceeding top device, safety hook, anti-overload device, etc.
SC200/200 construction lifting hoist:
1.Cage capacity: 2000kg
2.Lifting speed: 33m/min
3.Mast section: painted or hot galvanized
4.Height: customized
5.Cage size:3.0x1.5x2.2
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Anti-drop safety device are including:
SAJ30-1.2, SAJ30-1.4;
SAJ40-1.2, SAJ40-1.4;
SAJ50-1.2, SAJ50-1.4
ETC.
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Technical parameters
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Model
Rated LoadRated Speed
Calibration speed
SAJ08-1.0
0.8T
1.0m/s
Upon request
SAJ30-1.2
3.0T
1.2m/s
Upon request
SAJ30-1.4
3.0T
1.2m/s
Upon request
SAJ40-1.2A
4.0T
1.2m/s
Upon request
SAJ40-1.4
4.0T
1.4m/s
Upon request
SAJ40-2.0
4.0T
2.0m/s
Upon request
SAJ50-1.2
5.0T
1.2m/s
Upon request
SAJ50-2.0
5.0T
2.0m/s
Upon request
SAJ60-1.2
6.0T
1.2m/s
Upon request
SAJ60-2.0
6.0T
2.0m/s
Upon request
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Saj50 Anti-Fall Overspeed Governor and Accessories with Reliable Technology/Good Performance
Model NO.: SAJ 30/40/50/60/70
Main Girder Form: Single Girder
Rated Braking Speed: 2.0 M/S
Hoisting Speed: 1.2m/S
Weight(Kg): 38.5
Loder Weight: for Sc100 and Sc200
Model Number: Saj50
Color: Depend on Your Requirement
Applicable Models: Low-Speed Construction Hoist
Trademark: SRIBS
Transport Package: Wooden Case
Specification: SAJ 30/40/50/60/70
Origin: Shanghai
HS Code: 84313900
Construction hoist elevator safety devices SAJ30 40 50 60