8mm DIN766 MF DAMS Grade 70 Calibrated Anchor Chain - Shorter Lengths

Jimmy Green Marine 8mm DIN766 MF DAMS Grade 70 is sourced exclusively and directly from MF Catenificio Frigerio, a modern chain manufacturing plant in Italy.

MF Catenificio manufacturing is all carried out in their own research, test and ISO9001 attested production facility.
The whole state of the art enterprise is located in Olginate, near Lecco, Lake Como, Italy.

Every link is proof tested during the production process as part of their quality control.
The proof load testing process ensures that each individual weld has been completed successfully.


DAMS stands for Downsizing Anchoring and Mooring System

MF Calibrated Anchor Chain features enhanced Solid Zinc Galvanising treatment with greater micron depth and prolonged protection against corrosion.



MF have developed an enhanced Solid Zinc Galvanising treatment in conjunction with the standard hot dip galvanising process.
Solid Zinc Galvanising is an MF duplex treatment where both aspects of the process are complementary hot dip molten zinc galvanisation.
The improved coverage, micron depth and adhesion properties extended the effective working life of the galvanising by up to 25%.
Solid Zinc galvanising has a bright smooth appearance.

MF DAMS Grade 70 8mm DIN766 has a break load similar to 10mm Grade 40 chain
An 8mm Grade 70 anchor rode can therefore be approximately 50% longer than the 10mm Grade 40 equivalent without any increase in weight.
MF DAMS 8mm DIN766 is a long-length, high-performance extended-cruising solution for yachts up to 12 metres, length overall
N.B. As a comparison, 10mm Grade 40 chain is generally suitable for yachts up to 16 metres length overall.
It is advisable to take all the relevant information into account when determining whether 8mm Grade 70 will be suitable for yachts between 12 metres and 16 metres.

Factor in:

• Displacement : Length ratio
• Your cruising intentions
• The anticipated anchorage conditions e.g. depth, seabed holding characteristics, the length of fetch and degree of exposure to prevailing winds
• The length of chain that will be deployed and any extra scope provided by an anchor warp
• The weight and design of anchor

Your anchor rode is only as strong as the weakest link so ensure that all your connectors and shackles are rated to the requisite break load.
The strength of 8mm Grade 70 means that it is best considered as an all chain solution rather than a chain/rope combination.
14mm is the most compatible diameter rope to splice into 8mm DIN766 chain.
16mm diameter rope can be spliced into 8mm DIN766 chain but is a tight squeeze.
A minimum 18mm diameter nylon rope would be required in order for the chain and rope combination to be reasonably compatible in terms of strength.

Check your calibration:

There is one main calibration for 8mm chain - DIN766

N.B. Some Windlass and Chain manufacturers also refer to 8mm ISO 4565 but the dimensions are exactly the same as DIN766.
However, it is still very important to check the size and calibration of your gypsy/chain before you order.
If you are unsure, we can help you to decide - we will take all reasonable steps to ensure that you order the correct chain.
The simplest way to check that you are buying the correct calibration is to take a measurement from your existing chain, providing of course that it fits correctly.

We measure 10 links because, in practice, it is difficult to measure one link accurately enough.
The links should be laid out flat and pulled tight.
Measure from the outside edge to outside edge.

How to determine the correct calibration
N.B. The measurement for an old chain may be a little longer than new due to a degree of wear and elongation in use
 



MF DAMS Grade 70 8mm DIN766 Dimensions:

MF DAMS Grade 70 8mm DIN766 Specification:

Every link is tested to the proof load during the manufacturing process ensuring that each weld has been completed successfully

1Kn Force = 101.972Kg Break Load

70Kn = approximately 7138kg

Maximum Pin Diameter refers to the largest pin which will fit comfortably in the end link of 8mm DIN766 chain

Select the largest possible galvanised shackle (or anchor connector) by pin diameter to fit the chain

A copy of the Test Certificate is available with your order on request

Jimmy Green Quality Control and Accountability
Every length of chain is checked and labelled with the manufacturer, the date received and a corresponding batch number when it arrives.
The batch number is then recorded at the point of sale.
Every chain order is therefore traceable and accountable to the manufacturer Test Certificate