The standard supply of cappel is as shown below and within reason the eye dimensions can be modified to suit any particular requirement. The cappel limbs can be extended if required to house a hard rubber shock absorber as a means of reducing the effects of high-energy vibration which can cause fatigue failure in ropes.

Standard cappel sizes are for ropes from 16 mm (5/8”) to 64 mm (2 1/8”) but cappels for ropes of greater diameter can be supplied. Cappel wedges can also be supplied with grooves to take ropes of smaller diameter than those shown in the table below.

Cappel limbs and bands are made from 1.5% manganese steel to BS 2772, Part 2, 1989, in the hardened and tempered condition. Wedges and safety block are of mild steel to BS 4360: 1979 Grade 43A and in the normalised condition. All cappels are proof load tested to 2.5 times the safe working load and subjected to magnetic crack detection. Ultrasonic tests can also be carried out if required.

Where conditions warrant we can apply zinc as a protective coating.

 

General Data

Cappel for Rope Diameter of			Safe Working Load based on a factor of safety of 10:1			Approxiamate Weight when assembled
mm	in		kg	ton		kg	lb
16	5/8		4064	4		16	35
19	3/4		5588	5 1/2		20	44
22	7/8		6096	6		27	60
26	1		8128	8		38	85
29	1 1/8		10668	10 1/2		50	110
32	1 1/4		13208	13		68	150
35	1 3/8		15240	15		82	180
38	1 1/2		18796	18 1/2		110	240
41	1 5/8		21336	21		132	290
45	1 3/4		25400	25		164	360
48	1 7/8		30480	30		190	420
51	2		35560	35		209	460
54	2 1/8		41656	41		268	590
57	2 1/4		41656	41		295	650
60	2 3/8		43688	43		320	705
64	2 1/2		45720	45		360	795

To enable us to supply the correct cappel we need the following information:

(a)  Exact size of rope
(b) Type of rope
(c) Static load to be carried
(d) Details of connecting linkage