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Multi-Purpose Concrete Expansion Anchor

An expansion anchor typically consists of a metal sleeve, threaded rod, nut, flat washer, and spring washer. It is a mechanical fastener that creates a locking force in the substrate (such as concrete, masonry, etc.) through the principle of mechanical expansion. By utilizing its own expansion mechanism, the anchor generates radial expansion during installation, forming a tight compressive force against the borehole wall. This achieves high-strength tensile and shear fixation.

Expansion anchors are suitable for installing and reinforcing various structures including steel frameworks, support channels, air conditioners, security doors, machinery and equipment, railings, and brackets. They are characterized by ease of installation, high load capacity, and broad applicability. These anchors can replace embedded anchor bolts (such as J-bolts or L-bolts), helping to reduce construction timelines.

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Product Overview

TEDUN's Expansion Anchor is a robust mechanical fastener designed for high-load fixation in dense substrates. Comprising a metal sleeve, threaded rod, nut, flat washer, and spring washer, it operates on the mechanical expansion principle: during installation, radial expansion generates tight compressive force against the borehole wall, achieving high-strength tensile and shear fixation. This anchor replaces traditional embedded anchor bolts (J-bolts/L-bolts), cutting construction timelines by reducing pre-embedding work. It excels in solid substrates (concrete, solid brick, natural stone) with tensile strength up to 250kN@M30 and shear resistance exceeding 120kN, plus EN 1992-4 certification for seismic performance—ensuring a >50-year service life (validated via ISO 898-1 fatigue tests).

Expansion Anchor

Detail Data

The Expansion Anchor offers extensive specifications for diverse needs:

Material: Carbon Steel (Grade 4.8/5.8/6.8/8.8) for general use; Stainless Steel (304/316) for corrosion protection.

Surface Treatment: Electro zinc plating (zinc layer >5μm) for dry environments; Hot-dip zinc plating (zinc layer >45μm) for wet/corrosive areas.

Key Performance Parameters:

Models (e.g., 6*60, 10*200, 20*250) cover screw lengths from 60mm to 250mm.

Effective burial depth: 32mm (M10) to 200mm (M20); installation hole diameter: 10mm (6* series) to 25mm (20* series).

Installation torque: 4N·m (6* series) to 110N·m (20* series); design tension: 0.99kN (6* series) to 35kN (20* series); ultimate tension: 5kN (6* series) to 100kN (20* series).

Unsuitable for hollow bricks, aerated concrete, or plasterboard (low-strength/loose substrates).

Expansion Anchor
Model	Screw Length (mm)	Effective Burial Depth (mm)	Installation Hole Diameter (mm)	Drilling Depth (mm)	Installation Torque (mm)	Design Tension	Ultimate Tension
Model	Screw Length (mm)	Effective Burial Depth (mm)	Installation Hole Diameter (mm)	Drilling Depth (mm)	Installation Torque (mm)	Design Tension	Ultimate Tension
6*60	60	43	10	50	4	0.99	5
6*80	80	63	10	70	4	0.99	5
6*100	100	83	10	90	4	0.99	5
6*120	120	103	10	110	4	0.99	5
6*150	150	130	10	135	4	0.99	5
8*60	60	36	12	44	8	2.3	9
8*70	70	46	12	54	8	2.3	9.5
8*80	80	56	12	64	8	2.3	9.5
8*100	100	76	12	84	8	2.3	9.8
8*120	120	96	12	104	8	2.3	9.9
8*150	150	126	12	134	8	2.3	9.8
8*200	200	176	12	184	8	2.3	9.9
10*60	60	32	14	42	25	7	25
10*70	70	42	14	52	25	7	25
10*80	80	51	14	61	25	7	28
10*90	90	61	14	71	25	7	28
10*100	100	71	14	81	25	7	28
10*110	110	81	14	91	25	7	28
10*120	120	91	14	101	25	7	28
10*150	150	120	14	131	25	7	28
10*200	200	170	14	181	25	7	28
12*70	70	36	16	48	40	15	35
12*80	80	46	16	58	40	15	35
12*90	90	56	16	68	40	15	38
12*100	100	66	16	78	40	15	38
12*110	110	76	16	88	40	15	38
12*120	120	86	16	98	40	15	38
12*150	150	116	16	128	40	15	38
14*100	100	65	18	77	50	18	45
14*120	120	85	18	97	50	18	45
14*150	150	115	18	127	50	18	45
14*200	200	165	18	177	50	18	45
16*100	100	50	20	71	60	25	60
16*120	120	78	20	91	60	25	60
16*150	150	108	20	121	60	25	60
16*180	180	138	20	151	60	25	60
16*200	200	160	20	173	60	25	60
18*150	150	110	22	124	80	29	80
18*180	180	140	22	154	80	29	80
18*200	200	160	22	174	80	29	80
20*150	150	98	25	112	110	35	100
20*180	180	130	25	144	110	35	100
20*200	200	150	25	164	110	35	100
20*250	250	200	25	214	110	35	100
Material	Carbon Steel: Grade 4.8/5.8/6.8/8.8 Stainless Steel: 304/316
Surface Treatment	Electro zinc plating(zinc layer thickness>5um), used in general environment; Hot-dip zinc plaing(zinc layer thickness > 45um), used in corrosive environments.

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Multi-Purpose Concrete Expansion Anchor

Product Overview

Product Advantages

Instant Load-Bearing Capacity

Superior Mechanical Performance

Tool-Free Hammer-Drive Installation

Extreme Environmental Resilience

Cost Efficiency

Detail Data

Applications

Building Structure Fixing

Infrastructure Critical Connections

Civil & Commercial Uses

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