Harken 2160 57mm Power3 Soft-Attach Ratchamatic Block
- Brand:
- Harken
- Part no:
- 2160
Image: Fisheries Supply
Where to buy
Specifications
- Sheave diameter
- 57 mm
- Max line diameter
- 10 mm
- Bearing
- Ball
- Weight
- 71 g
- Max working load
- 227 kg
- Breaking load
- 907 kg
- Side plates
- Composite
- Manufacturer size
- 57mm Power3
Manuals
- User guide (PDF)www.chmarine.com
The Harken 2160 is the 57mm Power3 version of the Ratchamatic block, with a soft-attach system. Its side plates are composite and the sheave is hardcoat-anodized aluminum. The sheave is 57mm across, the block weighs 71g, and it takes line up to 10mm. The maker gives a breaking load of 907kg and a maximum working load of 227kg. The ratchet switches over to ratchet mode as load comes on the line.
Our take
The 2160 carries a 227kg maximum working load and a 907kg breaking load at only 71g, so the figures to respect are the working load and the 10mm maximum line. Its ratchet takes over when load comes on the line.
From our buying guide
Ball-bearing blocks give the lowest friction on lines running under moderate loads. Plain bearings have more friction, but handle very high and static loads.
Check before you buy:
- A ratchet block is rated for the full sheet load.
- Any becket's load limit suits the job, since a becket can be rated below the block itself.
- A soft-attach block will be looked after, since Harken warns soft attachments are prone to wear and recommends them only for regularly maintained race boats.
