• Model NO.：ZS190428-1
• Stop Ring Type：Slip Type and Hinged Type
• Usage：Well Drilling Machinery
• Transport Package：Wooden Case
• Specification：standard 4 1,2′′~20′′
• Trademark：ZS
• Origin：Henan
• Production Capacity：40000 Piece,Pieces Per Month

Basic Info.

Model NO. ZS190428-1 Stop Ring Type Slip Type and Hinged Type Usage Well Drilling Machinery Transport Package Wooden Case Specification standard 4 1/2′′~20′′ Trademark ZS Origin Henan Production Capacity 40000 Piece/Pieces Per Month

Product Description

Stop Collar
Description
1. Stop collar type:Hinged type and slip on type
2. Size: 4 1/2''~20'', according to the casing OD.
3. Usage: for well drilling area, combine with the centralizers, such as bow spring centralzers, rigid centralizers.

Parameters of stop collar

Specifications,mm	13 3/8″	10 3/4″	9 5/8″	8 1/8″	7 5/8″	7″	5 1/2″	5″	4 1/2″
ID,mm	338	272	245	206	193	177	139	126	114
OD,mm	350	284	257	218	285	189	151	138	126
Holding Force,KN	40	40	40	30	30	30	30	24	24

We have bow casing centralizer and rigid casing centralizer, there are the specification.
 
Parameter of Bow Casing Centralizers

Model (in)	Hooping In-Dia. (mm)	Hooping thickness(mm	Total length (mm)	Max.Out-Di (mm)	Amount of spring(mm)
5-1/2" x 8-1/2"	142-148	3-5	650±50	225±5	5
7" x 9-5/8"	181-186	3-5	650±50	255±5	6
7" x 8-1/2"	181-186	3-5	650±50	235±5	6
8-5/8 x 12-1/4"	223-228	3-5	650±50	330±5	8
9-5/8 x 12-1/4"	250-255	3-5	650±50	330±5	8
10-3/4 x 12-1/4"	274-276	3-5	650±50	330±5	9
13-3/8"x17-1/2"	342-347	3-5	650±50	450±5	11
18-5/8"x24"	475-477	3-5	600±50	610±5	12
20"x26"	509-511	3-5	600±50	660±5	12

Parameter of Rigid Casing Centralizers

Model	Max OD(mm)	ID(mm)	Length(mm)
4-1/2" x 6"	145	116.5	200
5" x 6"	145	129	200
5-1/2" x 8-1/2"	205-210	142	200/300
6-5/8" x 8-1/2"	205-210	171	200/300
7" x 8-1/2"	205-210	181	200/300
7" x 9-1/2"	225-235	181	200/300
7" x 9-5/8"	225-235	181	200/300
9-5/8" x 12-1/4"	300-305	248	200
13-3/8" x 17-1/2"	430-435	346	200