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. CHAINLOCK connectors can also be used with DIN quality grade 2 chains having the advantage of higher strength thus giving an additional safety factor.




Chainlock Connectors for Mining Chain

Nominal chain size	Reference Number	Dimension mm						Test Force   TF	Breaking Force     BF	Operating Force    WF	Wt.
mm		A	B	C	D	L	T	kN	kN	kN - max	kg
22 x 86	C 2532	28	85	55	23	132	86	525	745	456	1.8
26 x 92	C 2537	30	95	65	27	148	92	735	1040	637	2.6
30 x 108	C 2546	35	109	75	30	170	108	970	1380	848	4
34 x 126	C 2668	36	120	85	35	196	126	1250	1780	1090	5.6
38 x 126	C 2803	43	134	94	39	204	126	1560	2220	1360	7
38 x 137	C 2794	43	134	94	39	215	137	1560	2220	1360	7.6
38 x 146	C 2807	43	134	94	39	225	146	1560	2220	1360	8
42 x 146	C 2800	47	148	105	43	232	146	1910	2710	1660	9
48 x 152	C 2889	54	170	118	49	249	152	2500	3550	2170	16

An instruction leaflet is supplied with each CHAINLOCK connector which gives guidance on correct assembly and maintenance.
 
Key points are:

• Only fit in the horizontal plane
• Assemble the spacer into the connector body so that the location marks are aligned.
• Do not interchange components between connectors
• Ensure the securing screw is correctly tightened to appropriate torque as stated below.
• Regularly check for wear and damage
• Fully examine every 3 months or 1 M tonnes conveyed whichever is the sooner. (For BSL use, examine monthly).
• Always fit a new securing screw when re-assembling the connector.

Chainlock  Recommended Torques

Connector Size	Torque	Torque	Securing Screw
Mm	Nm	lbf-ft	Part No.
22	55 – 75	40 – 45	C 271901
26	100 – 120	74 – 88	C 271902
30	100 – 120	74 – 88	C 271903
34	140 – 160	103 – 118	C 271904
38	140 – 160	103 – 118	C 271905
42	220 – 240	162 – 177	C 271906
48	220 -240	162 - 177	C 271907

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.




V-Lock Connectors for Mining Chain

Nominal chain size	Reference Number	Dimension mm					Test Force   TF	Breaking Force -  BF	Operating Force - WF	Wt.
mm		C max	L max	T max	A min	B max	kN	kN	kN - max	kg
34 x 126	C 2927	36	292	126±1.3	37	99	1200	1600	1000	5
38 x 126	C 2914	40	290	126±1.3	41	111	1500	2000	1250	6.2
38 x 137	C 2937	40	302	137±1.4	41	111	1500	2000	1250	6.3
38 x 146	C 2930	40	310	146±1.5	41	111	1500	2000	1250	6.4
42 x 146	C 2931	44	330	146±1.5	45	115	1830	2440	1520	7.9
48 x 152	C 2992	56	331	152±1.5	53	127	2390	3180	1990	10

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


Key points are:

• Only fit and operate 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).

V-Lock Pin Reference

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

Bi-Lock connectors have been specifically designed to join together round link mining chains in either the horizontal or vertical plane, allowing connectors to be used AFC and plough haulage system applications.
 
Special material selection combined with close tolerance machining ensures the connector is easily assembled and has strength greater than the minimum requirements of chain to DIN22252/2 of a comparable size.
 
Adopting Parsons Chain Technology, the mechanical properties meet the requirements of DIN22258 Part 1.




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

• Ensure the mating surfaces and locking barrel are clean and free from dust.
• Once half links and locking barrel are assembled insert locking pin.
• DO NOT interchange components between connectors.
• Regularly check for wear and damage.
• Fully examine every 3 months, or 1 million tons conveyed, whichever is sooner (For BSL use, examine monthly).

Bi-Lock Connectors for Mining Chain

Nominal Chain Size d x t	Ref No.	Dimension mm						Test Force TF	Breaking Force BF	Operating Force  WF	Wt. Approx
mm		D max	T max	A min	B min	C max	R nom	kN	kN	kN	kg
22 x 86	22H	22 ± 0.7	86 ± 0.9	24	85	27	35	455	645	380	1.35
26 x 92	26H	26 ± 0.8	92 ± 0.9	28	97	33	41	637	900	531	1.92
30 x 108	30H	30 ± 0.9	108±1.1	32	109	36	47	848	1200	707	2.98
34 x 126	34H	34 ± 1.0	126±1.3	36	121	41	52	1090	1540	907	4.15
38 x 137	38H	38 ± 1.1	137±1.4	40	134	46	58	1360	1926	1130	5.71

Bi-Lock Pin Reference

Connector Size	Locking Pin
mm	Reference
22	P2286
26	P2692
30	P2692
34	P34126
38	P38137