Ellton Longwall - A Member of the Ellton Group

The Ellton Group

V-Lock Connector

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 to Parsons 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 are dimensionally in accordance with DIN 22258:2003 Part 3.
They are extremely sprocket friendly and are lighter in weight compared with the equivalent Chainlock connector.

For nominal Chain Size d x t	Reference Number	Dimension mm					Test Force TF	Breaking Force BF	Operating Force WF	Weight
For nominal Chain Size d x t		A	B	C	L	T	Test Force TF	Breaking Force BF	Operating Force WF	Weight
mm		min	max	max	max	max	kN	kN	kN-max	kg
34 x 126	C2927	37	99	36	292	126± 1.3	1200	1600	1000	5
38 x 126	C2914	41	111	40	290	126± 1.3	1500	2000	1250	6.2
38 x 137	C2937	41	111	40	302	137± 1.4	1500	2000	1250	6.3
38 x 146	C2930	41	111	40	310	146± 1.5	1500	2000	1250	6.4
42 x 146	C2931	45	115	44	330	146± 1.5	1830	2440	1520	7.9
48 x 152	C2992	53	127	56	331	152± 1.5	2390	3180	1990	10
Fatigue Test - 100 000 cycles min. (>120 000 typical). Mean stress 150N/mm2. Amplitutde 100N/mm2. Impact KV - 55J min (90J typical). Refer to DIN22258:2003 Part 3 for verification methods and procedures.

Assembly and Maintenance

An instruction leaflet is supplied with each V-Lock connector which gives guidance on correct assembly and maintenance.

Key points are:

Only fit in the vertical plane
Ensure that mating surfaces are clean and assemble carefully noting the correct direction of travel indicated by an arrow on the top face of the connector
Do not interchange components between connectors
Ensure the two sets of tension pins are fully inserted
Regularly check for wear and damage
Always fit new tension pins when re-assembling the connector
Fully examine every 3 months or 1M tonnes conveyed whichever is the sooner. (For BSL use, examine monthly).

For Nominal Chain Size	Tension Pin Reference
mm	Inner	Outer
34 & 38	C299304	C299301
42	C299309	C299302
48	C299306	C299303

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The Ellton Group