1. Compact link mining chain

Compact link mining chain utilizes a forged vertical link. This configuration has been developed in all sized up to 48mm and has significant advantages over a flattened wrought vertical link. CODCO's larger compact chains are formed and laced together with specially designed machinery to ensure continuous and consistently formed chain.

Compact mining chain may be manufactured to Xtra and DIN quality grades dimensions generally in accordance with DIN 22255:2001.

2.  Round link Mining Chain

Round link conveyor chains may be manufactured to Xtra or DIN quality grade 2 specification.

All chains meet the dimensional requirements in DIN 22252:2001

3. COR-X chain

The alloy steel material specification for COR-X chain was developed and patented in 1997 to overcome the effects of the most corrosive mining conditions.

High levels of acidity, conductivity, soluble chlorates and sulphates in the mine water will inevitably lead to the development of surface corrosion pitting which can result in premature failure due to the effects of corrosion fatigue or stress corrosion cracking.

4.  Xtra mining chains

Xtra mining chains have been developed expertise in materials technology and heat treatment techniques. First developed 20 years ago as Enhanced chain the range is reliable and well proven at those mines where operational conditions are suitable for high specification chain.

Xtra chain offers higher tensile strength, longer fatigue life and increased toughness properties when compared with chain conforming with the latest DIN specifications for round and flat link chain. Optimum hardness profiles for each link reduce interlink wear giving significantly increased operational life.

5. V-Lock Connectors (for vertical use only)  

V-Lock Connectors have been specifically designed for joining together mining chains of either round link or compact configuration and have strength 10% greater than connectors designed for use with DIN quality grade 2 chain.

 Improved performance has been achieved by careful selection of the steel which is unique and special heat treatment during the manufacturing process. Each connector is additionally differentially heat treated to ensure the connector side hardness level is limited to a maximum of HB 363. This ensures maximum resistance to potential rubbing cracks and also further enhances the fatigue life performance.

 V-Lock connectors are only for use in the vertical plane and dimensionally in accordance with DIN 22258:2003 Part 3. They are extremely sprocket friendly and are lighter in weight compared with the equipment Chainlock connector.

6. Bi-Lock connectors

Bi-Lock connectors  (for vertical and horizontal use) have been specifically designed to join together round link chains in either the horizontal or vertical plane, allowing the connectors to be used in both AFC and plough haulage system applications.

Special material selection combined with close tolerance matching ensures the connector is easily assembled and has a strength greater than the minimum requirements of chain to DIN22252/2 of a comparable size.

7.  CHAINLOCK connectors

CHAINLOCK connectors have been specifically designed for joining together Xtra quality mining chain and have compatible strength. This is 25% greater than connectors designed for use with DIN quality grade 2 chain of either round or flat link configuration. This Xtra performance has been achieved through careful choice of materials and heat treatment whilst keeping the dimensional properties within those specified in DIN 22258:2003 part 2. This will ensure that the connectors-which must be installed in the horizontal plane of the chain only-will safely negotiate sprockets that have been designed in accordance with this specification.