Description
PVC Rebar Centralizer for Soil Nails, Micropiles & Ground Anchors
A one-piece, white PVC/plastic lantern-style centralizer designed to help position reinforcing bars, tendons or related members within a borehole. The smooth, non-threaded inner bore allows straightforward placement, while zip ties or tie wire secure the centralizer at the required position.
70–140 mm Centralizing OD
140–200 mm Overall Length
Seven Standard Sizes
Product Short Description
Shangshan Petro supplies one-piece PVC rebar centralizers for soil nail, micropile, ground anchor and tieback assemblies. The lantern-style body provides circumferential spacing around the installed reinforcing member. Its smooth inner bore has no internal thread and is secured in position with zip ties or tie wire.
Standard options cover 25 mm, 32 mm and 80 mm inner diameters, with centralizing outside diameters from 70 mm to 140 mm. Buyers should select a model according to the actual reinforcing-member dimensions, borehole geometry, required clearance and project specifications.
Product Highlights
One-Piece Construction
The integrated plastic body simplifies handling and avoids separate body sections during installation.
Smooth Inner Bore
A non-threaded internal surface allows the centralizer to slide onto a compatible bar, tendon or assembly.
Simple Fixing Method
Secure the centralizer at the specified position using suitable zip ties or tie wire.
Lantern-Style Profile
Multiple outward ribs create spacing around the reinforcing member within the borehole.
Seven Standard Sizes
Choose from 25, 32 or 80 mm inner diameters and five centralizing OD options.
Project-Based Supply
Send the required model, quantity and delivery details for a factory quotation.
Quick Answer: What Is a Rebar Centralizer?
A rebar centralizer is a spacing component fitted around a reinforcing bar, tendon or related member to help maintain its intended position and clearance inside a borehole. This PVC model uses a one-piece lantern-style body with a smooth inner bore. It is positioned on the assembly and retained using zip ties or tie wire before installation.
Important distinction: This product is for geotechnical and foundation applications. It is not an oilfield casing centralizer, and API Specification 10D is not claimed for this product.
Typical Applications
Soil Nails
Helps position a reinforcing member within a drilled hole according to the project installation plan.
Micropiles
Used as a spacing component on compatible central reinforcement or tendon assemblies.
Ground Anchors
Supports planned alignment and clearance for anchor bars or tendon assemblies.
Tiebacks
Provides a simple centralizing option for compatible tieback reinforcement installed in boreholes.
Final suitability, number of centralizers and spacing must be determined by the project designer, engineer or approved installation procedure.
Design & Construction
- Type: one-piece lantern-style rebar centralizer
- Material: white PVC/plastic
- Inner bore: smooth and non-threaded
- Retention: zip ties or tie wire
- Available IDs: 25 mm, 32 mm and 80 mm
- Available centralizing ODs: 70 mm, 100 mm, 110 mm, 130 mm and 140 mm
Dimension Key
d = inner diameter
D = maximum centralizing outside diameter
H = overall length
Example: 25(d) × 100(D) × 180(H) mm.
PVC Rebar Centralizer Sizes
| Model | Inner Diameter, d | Centralizing OD, D | Overall Length, H | Full Size |
|---|---|---|---|---|
| 25-100 | 25 mm | 100 mm | 180 mm | 25 × 100 × 180 mm |
| 32-100 | 32 mm | 100 mm | 180 mm | 32 × 100 × 180 mm |
| 25-70 | 25 mm | 70 mm | 140 mm | 25 × 70 × 140 mm |
| 32-70 | 32 mm | 70 mm | 140 mm | 32 × 70 × 140 mm |
| 80-110 | 80 mm | 110 mm | 200 mm | 80 × 110 × 200 mm |
| 80-130 | 80 mm | 130 mm | 200 mm | 80 × 130 × 200 mm |
| 80-140 | 80 mm | 140 mm | 200 mm | 80 × 140 × 200 mm |
All dimensions are in millimetres. Confirm the required size against the actual reinforcing member and the approved project design before ordering.
How to Select the Correct Size
- Confirm the reinforcing member. Provide the actual outside diameter and describe whether it is a rebar, rod, tendon, duct or assembled component.
- Select a compatible inner diameter (d). The centralizer must fit over the member or assembly. Do not select from nominal size alone; verify the measured maximum outside dimension.
- Confirm the required centralizing OD (D). Compare the centralizer OD with the borehole diameter and the clearance required by the project design.
- Check the overall length (H). Ensure the selected profile can be installed at the specified positions without interfering with couplers, ducts or other components.
- Confirm quantity and spacing. Follow the engineer-approved drawings or installation procedure for centralizer spacing and quantity per assembly.
Installation Steps
- Verify the model and inspect the centralizer before installation.
- Confirm that the smooth inner bore fits over the intended bar, tendon or assembly.
- Slide the centralizer to the position shown on the approved installation drawing.
- Pass suitable zip ties or tie wire through/around the fixing area and secure the centralizer against unintended movement.
- Trim or manage the tie ends so they do not interfere with handling or insertion.
- Recheck orientation, spacing and attachment before lowering the assembly into the borehole.
Use fixing materials and installation practices approved for the project. Do not assume the centralizer itself determines the required spacing or structural design.
Factory Supply
Size-Based Quotation
Quotations can be prepared by model, required quantity and delivery destination.
Order Confirmation
Dimensions, fixing method, packing requirements and commercial terms can be confirmed before production or dispatch.
Shangshan Petro supplies centralizer products from Hejian City, Hebei Province, China. For other products, visit the Shangshan Petro product catalogue.
Packaging & Shipping Information
Packaging is confirmed according to model mix, order quantity and shipping requirements. To receive an accurate offer, state any carton marking, palletizing, labelling, documentation or destination requirements in your RFQ.
No fixed package quantity, unit weight or lead time is stated on this page because these details depend on the confirmed order.
RFQ Checklist
For a faster and more accurate quotation, please include:
- Required model(s): 25-100, 32-100, 25-70, 32-70, 80-110, 80-130 or 80-140
- Quantity required for each model
- Actual outside diameter and description of the reinforcing member or assembly
- Borehole diameter and project-required clearance, if available
- Application: soil nail, micropile, ground anchor, tieback or other
- Project drawing, photo or technical specification, if available
- Required fixing method: zip ties or tie wire
- Packaging, marking and documentation requirements
- Delivery city/port, country and requested trade term
- Required delivery date
Frequently Asked Questions
Is the inner bore threaded?
No. The confirmed product has a smooth inner bore with no internal thread.
How is the rebar centralizer held in position?
It is secured using suitable zip ties or tie wire at the required position on the reinforcing member or assembly.
Which inner diameters are available?
The standard size list includes 25 mm, 32 mm and 80 mm inner diameters.
Which centralizing outside diameters are available?
The listed centralizing ODs are 70 mm, 100 mm, 110 mm, 130 mm and 140 mm, depending on the selected inner diameter.
Can I select a centralizer by borehole diameter only?
No. Selection should consider the actual reinforcing-member OD, centralizer ID, centralizing OD, borehole geometry, required clearance and approved project design.
How many centralizers are required per bar or tendon?
The page does not prescribe spacing or quantity. These must follow the project engineer’s design, contract specifications or approved installation procedure.
Is this product an API 10D casing centralizer?
No. This PVC rebar centralizer is intended for geotechnical and foundation applications such as soil nails, micropiles, ground anchors and tiebacks. No API 10D claim is made.
What information is needed for a quotation?
Send the model, quantity, member dimensions, borehole information, application, delivery destination and any packing or documentation requirements.
Related Resources
All Products
Browse the Shangshan Petro product catalogue for other available product lines.
Rebar vs. Casing Centralizers
Rebar centralizers serve soil nail, micropile, anchor and tieback assemblies. Oilfield one-piece bow spring casing centralizers serve a different application and use different selection criteria.
Request a PVC Rebar Centralizer Quote
Send your size list, quantity, application and delivery destination. Drawings or photos are welcome when fit needs to be checked.
