Spherical Head Anchor with Collar for Precast Concrete
Product Overview
The Spherical Head Anchor with Collar also known as double head lifting anchor (often referred to in engineering catalogs as the Collar Anchor or Eye Anchor) is a highly specialized variant within the traditional pin lifting system. While maintaining the standard hemispherical head and solid forged foot, this heavy-duty lifting component features a precisely engineered integral collar (ring step) hot-forged along the upper section of the round shaft.
This distinctive structural collar is specifically designed to locate and support secondary tension reinforcement bars (Tension Bars / Anti-Splitting Bars) during casting. When precast elements feature low concrete compressive strength at early stages, or when shallow embedment depth limits traditional pull-out cones, the Spherical Head Anchor with Collar distributes massive diagonal or lateral tensile forces deep into the reinforced structure. It is the ideal wholesale solution for precasters producing lightweight panels, architectural concrete cladding, and complex thin-walled utility modules.

Key Features of Spherical Head Anchor with Collar
- High-strength forged steel construction
- Integrated collar for improved load distribution
- Precision spherical head for secure clutch engagement
- Designed for safe lifting and transportation of precast concrete elements
- Excellent mechanical performance and durability
- Suitable for a wide range of precast applications
- Available in multiple load capacities
- Compatible with standard spherical head lifting clutches
Technical Specifications
Every batch of our Spherical Head Anchor with Collar series undergoes destructive testing to ensure full structural compliance with global lifting and handling safety guidelines.

| I | d1 | d | d2 | k | Da | WLL |
| mm | mm | mm | mm | mm | mm | T |
| 40 | 18 | 10 | 25 | 10 | 60 | 1.3 |
| 50 | 18 | 10 | 25 | 10 | 60 | 1.3 |
| 65 | 18 | 10 | 25 | 10 | 60 | 1.3 |
| 85 | 18 | 10 | 25 | 10 | 60 | 1.3 |
| 65 | 25 | 14 | 35 | 11 | 74 | 2.5 |
| 85 | 25 | 14 | 35 | 11 | 74 | 2.5 |
| 120 | 25 | 14 | 35 | 11 | 74 | 2.5 |
| 110 | 36 | 20 | 50 | 15 | 94 | 5.0 |
| 240 | 36 | 20 | 50 | 15 | 94 | 5.0 |
| Load Class Rating (Tons) | Total Anchor Length (mm) | Shaft Diameter (mm) | Collar External Diameter (mm) | Companion Ring Clutch Size | Matching Recess Former Type |
| 1.3 Ton | 65mm / 85mm / 120mm | Ø 10mm | Ø 19mm | 1.3T Clutch | 1.3T Semispherical Bowl |
| 2.5 Ton | 90mm / 120mm / 170mm | Ø 14mm | Ø 26mm | 2.5T Clutch | 2.5T Semispherical Bowl |
| 5.0 Ton | 120mm / 180mm / 240mm | Ø 20mm | Ø 36mm | 5.0T Clutch | 5.0T Semispherical Bowl |
| 10.0 Ton | 170mm / 250mm / 340mm | Ø 28mm | Ø 47mm | 10.0T Clutch | 10.0T Semispherical Bowl |
OEM Customization: Need extended shaft lengths for specific insulation wall layers or non-standard metric load markings? Our technical forge line can rapidly customize dimensions and stamps to match your specific engineering layouts.
Installation & Reinforcement Guide
-
Mounting the Recess: Fit the Spherical Head Anchor with Collar inside your matching reusable rubber recess former.
-
Threading the Tension Bar: Loop your curved anti-splitting reinforcement bar directly over the round shaft so it rests flush against the top of the forged collar. Secure it tightly to the primary structural rebar mesh.
-
Pouring & Setting: Fasten the assembly to your steel formwork and cast the concrete. Ensure thorough vibration around the collar zone to eliminate air pockets.
-
Stripping & Rigging: After the concrete cures, strip away the rubber recess former to reveal a clean, recessed hemispherical head. Hook your standard Ring Clutch onto the exposed head for a secure lift.
Applications
The Spherical Head Anchor with Collar is commonly used in:
- Precast concrete wall panels
- Concrete beams and columns
- Hollow core slabs
- Solid floor slabs
- Utility and drainage products
- Bridge components
- Infrastructure and civil engineering projects
- Architectural precast concrete elements
It provides a dependable lifting point for handling precast concrete products throughout manufacturing, storage, transportation, and installation.
Why Choose Our Spherical Head Anchors with Collar?
As a professional supplier of precast concrete lifting systems, we provide high-quality spherical head anchors designed for strength, safety, and reliability. Our products are manufactured under strict quality control standards and are trusted by precast concrete producers worldwide.
We offer:
- Consistent product quality
- OEM and customized solutions
- Competitive factory-direct pricing
- Fast delivery and global export support
- Technical assistance for lifting system selection
Request a Quote
Looking for a reliable supplier of spherical head anchors with collar for precast concrete lifting applications?
Contact our team today for technical specifications, pricing, drawings, samples, and bulk order quotations. We are ready to help you select the right lifting anchor solution for your project requirements.
📧 Email: [email protected]
📞 WhatsApp : +86-18660236941
🔗 Related Products:




