Anchor windlass gypsy of five tooth cable lifter

The wildcat of anchor windlass is used to haul in and pay out anchor chain on board ships.

An anchor windlass gypsy is an essential component of a boat’s anchoring system, responsible for controlling the chain or rope that connects the anchor to the vessel. Understanding the different types of windlass gypsies and their features can help boaters select the right one for their needs.

The basic size of the five-tooth anchor windlass gypsy profile

d	D0	D	Dmax	D2	D3	D4	R1	R2	R3	H	k	b	B	s	r1	r2	@
12.5	159	170	85	118	203	213	119	19	11.5	14	10	23	58	23	20	5	72DEGREE
14	178	191	95	132	227	237	133	21	12.5	15	10	25	64	25	22
16	204	218	109	150	259	269	152	24	14	18	11	28	74	29	25
17.5	223	238	119	165	284	294	166	26	15.5	19	11	31	81	32	28
19	242	259	129	178	308	318	180	29	17	21	12	34	87	34	30
20.5	261	279	139	192	332	342	195	31	18	23	13	36	94	37	33
22	280	299	150	206	356	366	202	35	19.5	23	14	39	101	40	35
24	306	327	163	224	389	399	221	38	21	24	15	42	110	43	38
26	331	354	177	242	421	433	239	42	22.5	26	16	45	120	47	42	6
28	357	381	190	261	454	466	244	50	24	28	17	48	129	50	45
30	382	·108	204	279	486	498	246	54	25.5	30	18	51	138	54	48
32	407	436	217	298	518	530	248	58	27	32	19	54	147	58	51
34	,133	463	231	316	551	563	250	61	29	34	20	58	156	61	55
36	458	490	2·15	324	583	595	252	72	30.5	36	21	61	165	65	58
38	484	517	258	342	616	628	266	76	32	38	22	64	175	68	60
40	509	544	272	360	648	662	280	80	33.5	40	23	67	184	72	64
42	535	572	285	378	680	694	294	84	35	42	23	70	193	76	67
44	560	599	299	396	713	727	308	88	37	44	24	74	202	79	70	7
46	586	626	313	414	745	759	322	92	38.5	46	25	77	212	83	74
48	611	653	326	432	778	792	336	96	40	48	26	80	221	86	76
50	636	681	340	450	810	824	350	100	41.5	50	27	83	230	90	80
52	662	708	354	468	842	856	364	104	43	52	27	86	239	94	83
54	688	735	367	486	875	889	378	108	45	54	28	90	248	97	86
56	713	762	381	504	907	923	392	112	47	56	28	94	258	101	90	8
58	738	789	394	522	940	956	406	116	48	58	29	96	267	104	92
60	764	817	408	540	972	988	420	120	50	60	30	100	276	108	96
62	789	814	422	558	1001	1020	434	124	51.5	62	31	103	285	112	99

the production process for the anchor windlass gypsy

Design phase: During the design phase of the anchor windlass gypsy, its dimensions, structure, materials, and other technical parameters need to be determined. The designer needs to determine the specifications and requirements of the anchor windlass gypsy based on factors such as the ship type, anchor size, and ship usage environment.

Forging: The anchor windlass gypsy is usually made through forging, which is a process of heating metal and shaping it using large presses. Through hammering and pressing, the metal billet gradually forms the rough shape of the anchor windlass gypsy.

Precision machining: After the forging process, precision machining is required to achieve the required accuracy and surface finish. This typically involves processes such as turning, milling, drilling, and grinding.

Heat treatment: The anchor windlass gypsy needs to undergo heat treatment to change its structure and mechanical properties. Common heat treatment methods include annealing, normalizing, quenching, and tempering.

Surface treatment: Surface treatment can improve the corrosion resistance and wear resistance of the anchor windlass gypsy. Methods such as electroplating, spraying, or chemical treatment are commonly used.

Quality inspection: Multiple quality control checks are required during the production process, including raw material quality inspection, process control, and finished product inspection, to ensure that the anchor windlass gypsy meets specifications and standards.

Packaging and transportation: After production is complete, the anchor windlass gypsy needs to be packaged and labeled according to customer requirements and transported for delivery.

Material

Our wildcat is manufactured from medium-strength carbon steel castings, which provide a surface hardness of approximately 150HB.

This level of hardness ensures that the wildcat is strong enough to withstand the high stresses and loads involved in anchoring, while also providing good resistance to wear and abrasion. Choosing a high-quality wildcat made from the right materials is crucial for ensuring the reliability and safety of the anchoring system.

China		ISO	TOCT	UNS	JIS	DIN	BS	NF
New	Old
ZG200-400	ZG15	200-400	15JI	J03000	SC410	GS-38	–	–
ZG230-450	ZG25	230-450	25JI	J03101	SC450	GS-45	A1	GE23
ZG270-500	ZG35	270-480	35JI	J02501	SC480	GS-52	A2	GE28
ZG310-570	ZG45	–	45JI	J05002	SCC5	GS-60	–	GE32
ZG340-640	ZG55	340-550	–	J05000	–	–	A5	GE37

Terms of cable-lifter

Image credit: marinestudy

A chain groove is a circumferential groove located at the centerline of the chain on the wildcat, designed to provide clearance for links passing perpendicular to the shaft centerline.

Chain pockets are recesses between the flanges and whelps on the wildcat, where links with flat sides parallel to the shaft centerline are placed.

A detachable link is a “C” shaped link used to join anchor chain lengths and appendages into a continuous length aboard the ship. It is closed by a pair of closing pieces and a taper pin.

Flanges are circumferential rims located on the outside of the whelps, chain pockets, and chain groove.

Link grip refers to the inside dimension of a chain link, which represents the effective length of a chain link in an assembled chain. It is generally four times the nominal size of a stud link anchor chain.

Whelps are protrusions on the inside of the flanges of the wildcat that resemble gear teeth. They are shaped and sized to follow the path of the chain as it enters and leaves the wildcat. The faces of the protrusions are separated by the chain groove, which allows links with the flat side perpendicular to the shaft centerline to pass, while blocking links with the flat side parallel to the shaft centerline.

A wildcat is a rotating component designed to receive assembled chain links and connecting links around its circumference. It is specially contoured and of suitable strength to impart motion to the chain when rotated.

Chain warping Test Methods

Measure the size of the anchor gyspy with the corresponding measuring tool

Check and check the grade and material certificate of the material used for the cable lifter

testing regulations

The inspection of the anchor gypsy is divided into type inspection and factory inspection.

Type inspection

a) First products of various modes:

b) Production and type identification of old products:

c) After formal production, due to major changes in structure, materials and processes, it is enough to affect performance:

d) Resume production after 4 years of production stoppage:

e) The factory inspection result is quite different from the previous type inspection result:

f) National quality supervision agencies have requirements.

Anchor windlass gypsy of five tooth cable lifter

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