Many kinds of sucker rod centralizers

1. Introduction of sucker rod centralizer

The sucker rod centralizers are used to protect sucker rod to reduce wearing.

2. Material

2.1. Plastic: UHMWPE (Ultra High Molecular Weight Polyethylene)

2.2. Rubber: Nitrile

2.3. Nylon: Nylon 6/6

2.4.. 42CrMo

3. Structure

3.1. Pure plastic

3.2. Steel frame, rubber inside and outside

3.3. Nylon6/6 roller and alloy steel body