Muncy-Upson - Open Strand Sockets

MUNCY™ Open Strand Spelter Sockets
For use on structural strand.

This socket is used for structural strand and rope. Pin and cotter pin are included.
PDF Version

Metric

												PIN		COTTER
Metric	A	J	K	M	N	O	P	Q	U	V	Y	LENGTH	DIAM. D	PIN DIAM.	WEIGHT	Metric
Rope	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	kg	Strand
44-48	422	156	89	165	102	89	152	51	102	32	159	178	89	13	32	37-41
51-54	444	165	92	178	102	102	171	57	102	41	159	213	95	13	42	43-44
57-60	489	171	95	203	114	108	181	56	114	41	175	219	102	13	50	46-48
57-60	543	178	98	241	124	114	190	59	121	41	190	225	108	13	63	49-51
-	571	197	98	254	121	114	203	63	121	51	190	244	114	13	73	52-54
63-67	613	200	102	279	133	127	216	67	140	51	203	260	121	16	89	56-57
70-73	629	210	114	279	140	133	229	70	152	54	216	273	127	16	105	59-60
76-79	667	216	127	305	146	140	238	76	165	57	229	286	133	16	118	62-65
-	695	212	127	311	162	152	260	79	165	63	248	311	146	16	145	67-70
83-86	756	254	143	330	171	159	279	86	178	63	267	317	152	16	178	73-76
89-92	800	267	156	337	197	171	298	95	190	70	286	343	165	16	196	79-83
-	832	273	162	349	210	184	324	102	203	76	298	371	171	16	264	86-89
95-102	851	279	171	356	216	190	343	108	216	86	311	394	178	16	307	92-95
108-114	876	286	178	362	229	203	362	114	222	89	324	416	184	19	342	98-102
-	889	298	178	375	216	210	349	133	241	70	324	384	184	19	299	105-111
-	940	317	203	394	229	216	368	146	267	76	343	403	190	19	353	114-121

Muncy Machine Spelter Sockets can be used for Wire Rope or Strand. We are proud that our Spelter Sockets are quality Domestic Spelter Sockets MADE IN USA using quality casting from domestic foundries and our machining.

We have two different lines of spelter sockets: the “Strand Style” and the “Rope Style”. The “Strand Style” was designed by Bethlehem Engineers and manufactured by Muncy Machine since the 1960s. The design has a shorter basket than other spelter socket designs for a weight-saving/cost-saving advantage. “Strand Style” spelter sockets, while designed for strand, are routinely used for wire rope. They have the same pin and jaw dimensions as the industry-standard “Rope Style” spelter sockets. Sockets are made for zinc pouring, though can be made for resin by request.

“Strand Style” spelter sockets are designed with a 5 to 1 safety factor. Muncy spelter sockets feature added quality with machined pin holes, with the larger sizes 100% di-penetrate testing.

“Rope Style” spelter sockets are designed to the industry standards. Sizes ½” Wire Rope to 1-1/2” Wire Rope are groove-less castings. Sizes 1-5/8” to 4” Wire Rope are grooved castings made to the 550D Federal Specification. Sockets are made both zinc pouring and resin.

“Rope Style” spelter sockets are designed with a 5 to 1 safety factor. Muncy spelter sockets feature added quality with machined pin holes, with the larger sizes 100% di-penetrate testing.

Our Muncy Spelter Sockets come self-colored, painted and galvanized. Muncy Spelter Sockets are frequently used in bridges, roofs, construction, etc. and used around the world.

Spelter Sockets, if used improperly, can result in unsafe conditions, and perhaps cause death or serious bodily injury. Before using Muncy Spelter Sockets, please consult with experts & test your Muncy Spelter Socket assemblies.
There are many ways to go wrong in socketing procedures. Some of the common pitfalls that should be guarded against include:

Turning back the strands – inward or outward – before the “broom” is inserted into the socket;
Turning back the strands and seizing them to the body of the rope;
Turning back the strands and tucking them into the body of the rope;
Tying a knot in the rope;
Wedging nails, spikes, bolts, etc. into the socket after the rope is inserted in an attempt to secure a tight fit. This is a particularly dangerous practice

IMPORTANT INFORMATION

Some socket manufacturers do not recommend the reattachment of used poured sockets. Consult the manufacturer for specific recommendations. We have added this excerpt from the Third Edition of the Wire Rope Sling Users Manual for your information:
“Improperly attached wire rope terminals lead to serious –possibly unsafe- conditions. To perform properly, all wire rope elements must be held securely by the terminal. If this is not accomplished, the strands will become unequally loaded and it is likely that a strand will become “high”.

Poured sockets have traditionally been the method for determining the rope’s actual breaking strength. All other types of terminations have been compared to poured sockets. Their efficiency is therefore established to be 100% for all grades and constructions of rope.

Rope assemblies with poured attachments are generally used as a straight tension member where the rope body does not contact the load and is otherwise kept free from distortion or physical abuse. In such cases, where the rope acts as a pendant line, the minimum recommended design factor is 3.0. If the assembly is used as a sling, then the minimum recommended design factor of 5.0 should be used to calculate the rated capacity.
Length tolerances for poured attachments can be somewhat more stringent than other types of assemblies. The manufacturer should be contacted and agreement reached before the order is placed. Tolerance as small as plus or minus 1/8” is not out of the ordinary for this type of assembly. Specifications such as type of fitting, pin orientation (See Appendix B), whether zinc or resin should be used, and type of application should also be supplied to the manufacturer when order these types of assemblies.

When preparing a wire rope for socketing it is of extreme importance to follow recommended procedures. (See Appendix C: SOCKETING PROCEDURES.) Those inexperienced in the socketing process should not try to fabricate assemblies without first getting expert training. It is far better to leave fabrication of this type of assembly to the experts.
It is recommended that all poured sockets, whether they be zinc or resin, be proof loaded.

Appendix C SOCKETING
POURED SOCKET – Spelter or Resin
The following socketing methods are general in nature and have been proven over years of use. Procedures for zinc and resin differ significantly, but will achieve the same end result. Slight variations to these procedures have been used with acceptable results, however this cannot be predetermined without destructive tests.

There are many ways to go wrong in socketing procedures. Some of the common pitfalls that should be guarded against include:

Turning back the strands – inward or outward – before the “broom” is inserted into the socket;
Turning back the strands and seizing them to the body of the rope;
Turning back the strands and tucking them into the body of the rope;
Tying a knot in the rope;
Wedging nails, spikes, bolts, etc. into the socket after the rope is inserted in an attempt to secure a tight fit. This is a particularly dangerous practice.

Zinc-Poured Spelter Socketing
1. Measure the Rope Ends to be Socketed
            The Rope end should be of sufficient length so that the ends of the unlaid wire (from the strands) will be at the top of the socket basket. (Fig. C1)
2. Apply Serving at Base of Socket
            Apply a tight serving band for a length of two rope diameters, at the point where the socket base will be, to eliminate any distortion below the band of the wire and strands. (Figs. C2 & C3)
3. Broom Out Strand Wires
            Unlay and straighten the individual rope strands and spread them evenly so that they form an included angle of approximately 60 degrees. Unlay the wires of each individual strand for the full length of the rope end – being careful not to disturb or change the lay of the wire and strands under the serving band. Unlay the wires of the independent wire rope core (IWRC) in the same manner. A fiber core should be cut out and removed as close to the serving band as possible.”

These excerpts are used for informational purposes only.
Muncy Machine makes no warranties or representations whatsoever.
Consult a professional before installation.