Precast Concrete Lifting Systems
Rubber Recess Former with Threaded Rod & Wing Nut for Lifting Anchors
A reusable rubber recess former with threaded rod and wing nut designed to position and secure pre-embedded lifting anchors during precast concrete casting. It forms a precise hemispherical recess in the concrete to allow safe and easy engagement of lifting clutches during handling and installation. The galvanized threaded rod and wing nut provide a secure mechanical lock through formwork, preventing anchor shift during vibration and pour. Available in load groups from 1.3T to 10.0T with standard M12, M16, and M20
- Material
- High-Quality Rubber Fixing Method: Threaded Rod and Wing Nut Recess Shape: Hemispherical
- Catalogue Family
- Precast Concrete Lifting Systems
- Certificates
- EN 10204 3.1 material test certificate on request
CAD files are supplied on request via WhatsApp or email rather than published for open download.
Key Benefits
What Rubber Recess Former Gives You
- Creates a consistent hemispherical recess for reliable engagement of lifting ring clutches and duckbill hooks
- Galvanized threaded rod and wing nut prevent anchor movement during concrete pour and vibration
- High-grade rubber body ensures clean demolding without chipping or damage to cured concrete edges
- Reusable over hundreds of cycles, reducing per-unit cost in high-volume precast production
- Standardized to global precast lifting regulations ensuring compatibility with 1.3T, 2.5T, 5.0T, and 10.0T anchor systems
- Natural elasticity of rubber allows easy removal from cured concrete without tools or damage
- Secure attachment through formwork holes eliminates anchor misalignment and casting defects
Application Scenarios
Where Rubber Recess Former Is Used
- Precast concrete panel production where lifting anchors must be accurately positioned and protected during casting
- Factory casting of beams, columns, and wall panels requiring consistent recess formation for crane handling
- High-volume precast operations where reusable tools reduce material waste and downtime
- Projects using Swift Lift anchors or similar pin anchor systems needing a reliable recess former
- Sites with tight tolerances where anchor misalignment during pour would cause rework or safety issues
- Production lines requiring fast setup and removal of formwork accessories without damaging the concrete surface
Who It Is For
Buyers This Product Is Built For
- Precast concrete manufacturers building panels, beams, and structural elements for construction
- Factory operators managing high-volume precast casting with repeated use of lifting anchors
- Engineering firms specifying lifting systems for precast components requiring traceable recess formation
- Formwork suppliers integrating lifting anchor positioning tools into their standard form kits
- Contractors requiring consistent, safe lifting access points on precast elements during transport and erection
Problems It Solves
Problems This Product Removes
- Inconsistent or misaligned lifting anchor recesses caused by loose or shifting formers during concrete pour
- Damage to concrete edges during demolding due to rigid or poorly designed recess tools
- Need to replace single-use or disposable recess formers, increasing material cost and waste
- Lifting clutches failing to engage because the recess is too shallow, too narrow, or irregularly shaped
- Anchor shift during vibration and pouring leading to off-center lifting points and safety risks
- Multiple suppliers required for anchors, formers, and fasteners when a single integrated solution exists
Technical Features
Technical Features
- Hemispherical recess shape formed in concrete to match lifting clutch geometry
- Threaded rod with galvanized finish for corrosion resistance in wet concrete environments
- Wing nut for quick hand-tightening and secure fixation through formwork
- High-grade rubber or polyurethane body with high elasticity and wear resistance
- Standardized to match 1.3T, 2.5T, 5.0T, and 10.0T lifting anchor systems
- Reusable design with clean demolding and no surface damage to cured concrete
- Thread size standardized as M12, M16, or M20 depending on load group
Specifications
Rubber Recess Former Specifications
Values published in the Kailipu catalogue for this item. Anything not listed is available on request.
| Load Group | 1.3T, 2.5T, 5.0T, 10.0T |
|---|---|
| Base Diameter O.D. | 60–66mm (1.3T), 74–80mm (2.5T), 94–100mm (5.0T), 118–128mm (10.0T) |
| Thread Size | M12 (1.3T, 2.5T), M16 (2.5T, 5.0T), M20 (10.0T) |
| Material | High-quality rubber or polyurethane |
| Fixing Method | Threaded rod with wing nut |
| Recess Shape | Hemispherical |
| Reusability | Hundreds of cycles |
| Standard Compliance | Global precast lifting regulations |
| Custom Options | Custom colors, thread length, and capacities up to 15T or 20T available |
Materials
Materials And Finishes
- High-grade rubber or polyurethane body with excellent elasticity and resistance to wet concrete
- Galvanized threaded rod for corrosion protection in damp casting environments
- Wing nut made from durable steel with smooth threading for repeated tightening
- Natural rubber formulation designed to release cleanly from cured concrete without residue
Manufacturing Process
How This Product Is Made
1Molding of rubber or polyurethane body into hemispherical shape with central bore for threaded rod
2Insertion and alignment of galvanized threaded rod into the body
3Assembly of wing nut and final inspection of thread engagement
4Testing of elasticity and release performance on cured concrete samples
5Packaging for export with protective wrapping to prevent surface damage
Quality Control
Quality Control On Every Batch
- Dimensional tolerance check of base diameter and recess depth against published specs
- Thread engagement test on rod and wing nut to ensure smooth operation
- Elasticity and release test on cured concrete to confirm clean demolding
- Visual inspection for surface defects, cracks, or material inconsistencies
- Batch proof test on a sample set to verify load group compatibility and reusability
Customisation
Customisation Options
- Custom tonnage stamping on the body for load group identification
- Custom thread length to match specific formwork thickness
- Custom colors for factory identification or branding
- Larger capacities such as 15T or 20T built to drawing
- Custom packaging configuration for pallet or carton handling
Compare
How It Compares With The Alternatives
An honest read on where this pattern wins and where another one would serve you better.
| Alternative | Honest Trade Off |
|---|---|
| Disposable plastic recess former | The rubber version is reusable over hundreds of cycles, reducing material cost and waste, while plastic formers degrade after one use and may leave residue |
| Rigid metal recess former | The rubber version protects concrete edges during demolding and allows easier removal, while metal formers risk chipping and require force to extract |
| Adhesive or tape-based anchor fixer | The threaded rod and wing nut provide a mechanical lock that prevents shift during pour, unlike adhesive solutions that can fail under vibration |
| Simple rubber plug without rod | The threaded rod and wing nut ensure secure attachment through formwork, eliminating anchor drift, whereas a plug-only design relies on friction alone |
Use Guide
How To Use And Inspect Rubber Recess Former
- Insert the lifting anchor into the rubber recess former before placing it in the formwork
- Pass the threaded rod through the formwork hole and tighten the wing nut securely
- Ensure the wing nut is fully engaged to prevent anchor movement during concrete vibration
- Verify the recess shape is fully formed and aligned with the intended lifting point
- After curing, remove the former by hand or light prying—do not force it to avoid damage
- Inspect the former for wear or damage before reuse; retire if the rubber shows cracks or deformation
Related Products
Often Ordered With This Item
Double-Headed U-Shape Lifting Anchor
Spherical Head Anchor with Collar for Precast Concrete
Utility Lift Anchor for Precast Concrete
Rubber Recess Former for Spread Anchor (Split Type)
Magnetic Recess Former for Swift Lift / Pin Anchors, Magnetic Void Former
Spherical Head Lifting Anchor
Lifting Eye Anchor / Dogbone for Precast Concrete
Lifting Clutch for Precast Concrete
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Industries Using This Product
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Answers
Rubber Recess Former FAQ
Can this be used with Swift Lift anchors?
Yes. The hemispherical recess is designed to match the geometry of Swift Lift anchors, pin anchors, and similar precast lifting systems.
Is the rubber resistant to wet concrete?
Yes. The high-grade rubber or polyurethane is specifically formulated to withstand prolonged exposure to wet concrete without degradation.
How many times can it be reused?
The rubber recess former is designed for hundreds of reuse cycles under normal casting conditions with proper handling.
Are custom sizes available?
Yes. Custom capacities such as 15T or 20T, custom thread lengths, and custom colors are available upon request.
What thread sizes are standard?
Standard thread sizes are M12 for 1.3T and 2.5T, M16 for 2.5T and 5.0T, and M20 for 10.0T.
How do I secure it to the formwork?
Pass the galvanized threaded rod through the formwork hole and tighten the wing nut by hand. The wing nut provides a secure mechanical lock.
Can I use it for 10.0T anchors?
Yes. The 10.0T version is specifically designed with an M20 thread and a 118–128mm base diameter to match 10.0T lifting systems.
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