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DSVS-B Chain Block

  • DSVS-B
  • 0.25-30Ton
  • 10pcs
Net weight(kg):
DSVS-B Chain Block
- Dawson Group Ltd. - China Manufacturer, Supplier, Factory
DSVS-B Chain Block      DSVS-B Chain Block DAWSON-GROUP

The gear cover design with high strength prevent the outside impact to protect its internal components.
The adoption of overall bearing ,greatly improved product performance and service life.
The adoption of low-alloy structural steel plates, more safe and long service life.
Grade 80 high strength load chain, High safety factor, Long service life .
The open hook rack prevent the entry of foreign matter to avoid the card anti-phenomenon of chain and pulley.
Steady rotation ,high efficiency, light hand pulling force.
Approved by CE ,GS Certificate.
Double pawls, double load chain guide wheels ensure the safe working.
Hand chain opening is formed with a radius for smooth operation.
This product has been used by the nuclear power, thermal power. such as power transmission and transformation.
Overload protection optioned.

Model Capacity
No. of falls of load chain Specification of load chain Grade of load
Effort required to lift max load
Running test
Hand chain
Standard lift
Net weight
Gross weight
a b c d e f g h
DSVS-B0.25T 0.25 1 4×12 80 186 0.38 3×15×10 3 3.9 4.3 102 106 29.5 21 27 32 35.5 250
DSVS-B0.5T 0.5 1 5×15 80 260 0.75 5×25×17 3 7.8 8.1 125 130 43 25 27 32 35 280
DSVS-B1T 1 1 6×18 80 269 1.5 3 11.1 11.5 134 155 51 30 33 40 45 306
DSVS-B1.5T 1.5 1 8×24 80 375 2.25 3 15.8 16.2 151 173 64 34 33.5 42 47 368
DSVS-B2T 2 1 8×24 80 407 3.0 3 16.8 17.3 157 185 64 34 37 46 52 445
DSVS-B3T 3 2 8×24 80 386 4.5 3 24.2 24.7 157 235 100 56 43.5 52 62.5 520
DSVS-B5T 5 2 10×30 80 402 7.5 3 39.8 40.2 180 262 126 74 51 60 79 600
DSVS-B10T 10 4 10×30 80 426 12.5 3 89.7 100.7 180 365 260 98 64 85 - 760
DSVS-B15T 15 5 10×30 80 447 18.75 3 157.7 170.7 210 406 110 168 80 100 - 1000
DSVS-B20T 20 8 10×30 80 440×2 25.0 3 197 211 225 550 286 123 82 110 - 1150
DSVS-B30T 30 12 10×30 80 462×2 37.5 3 281 297.5 310 630 306 180 82 110 - 1500

DAWSON manual chain hoists are commonly known as chain blocks and are designed for heavy duty lifting and materials handling operations. Chain blocks raise and lower loads by pulling on the hand chain. Chain blocks can be of single or double fall configurations depending on the capacity of the block.

Ensure that the chain block name plate and WLL is clearly visible and legible.
The pre-use inspection for a chain block should include the following:

Load chain
1.Inspect chain for wear.
2.Inspect chain for gouges, nicks, arc burns, twisted & bent links and corrosion.
3.Inspect for correct reeving on multi-reeved units (3 and 5 tonne).
Lift wheels & Sheave wheels
1.Inspect lift wheel for foreign material, wear and corrosion.
2.Inspect dead end pins for wear, tightness and corrosion.

1.Inspect hooks for signs of opening, cracking, bending, arc burns and corrosion.
2.Hooks should swivel freely.
3.Inspect safety latches for condition & operation.
4.Measure the hook throats for allowable service openings.
Hand chain
1.Inspect chain for wear.
2.Inspect chain for twisted or gouged links and corrosion.
3.Inspect connecting link for signs of opening.
1.Inspect frame and covers for distortion, cracks, gouges, corrosion & other damage.
2.Inspect hangers (3 and 5 tonne) for cracks, gouges, corrosion & other damage.
3.Inspect unit for clear WLL identity.
1.The load chain must always mesh correctly with the load sheave. With multi fall chain blocks twists can arise by turning over the bottom hook through the load chain.
2.Regularly lubricate the whole length of the load chain with machine or gear oil but be careful not to over lubricate as oil or grease on the brake discs can cause the brake to malfunction and slip.
3.Confirm that the brake is functioning properly by hoisting the load 100mm and check the brake when lowering the load.
4.Non-vertical (sideways pulling) of the hand chain is not recommended on our chain blocks.
5.The hand chain is equipped with a safety link. When the safety link opens or deforms, stop at once and inspect for the cause.
6.Confirm that the monorail beam or structure supporting the chain block is of sufficient strength to support the load to be lifted.
7.Never lift loads in excess of the WLL of the chain block.
8.Never walk or work under a hoisted load and never lift, support or transport people.
9.Use chain blocks manually only.
10.Do not permit more than one operator to pull on the hand chain at one time.
11.Lift loads correctly with proper slings and attachments. Never lift with the point of the hook and never use the load chain as a sling by back hooking.
12.Lifting a load with two chain blocks is not recommended. If the operation is unavoidable, hoist the load with utmost care, keeping the load balanced.
13.Never run the load chain out too far. When operated beyond the range of lift, an excessive load that can cause damage will be imposed on the chain block.
14.Chain blocks are designed for lifting loads vertically and should not be used for horizontal or angle hoisting.
15.Extreme temperatures will reduce the durability of the hoist. Loads should be hoisted or lowered very slowly and carefully in extreme temperatures.
16.Never leave a load hanging on the hoist.
17.Never use the chain or hook as a ground for welding.
Asbestos free brake, holding load at any desired height. 
- Robust all-steel construction. 
- Top and bottom hooks are fitted with safety latches as standard. 
- All rotating components mounted on roller or ball bearings to reduce friction & increase efficiency.

Other related products:
other chain block
DSVS-B Chain Block - Dawson Group Ltd. - China Manufacturer, Supplier, Factory
Factory & Package Show:
DSVS-B Chain Block - Dawson Group Ltd. - China Manufacturer, Supplier, Factory
Factory of Chain Block-China Manufacturers Suppliers

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