MEGABolt Self Drilling Anchors (SDA)

MEGABolt Self-Drilling Anchors (SDA)

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MEGABolt Self Drilling Anchor (SDA) is a bolting solution for different ground conditions including sand, gravel, silt, and clays, as well as in soft to medium fractured rock formations. Our drill bits are available in different designs diameters and thread types. Our Self Drilling Anchors are compatible with most standard rock drilling equipment.

The MEGABolt Self Drilling Anchor (SDA) system consists of:

Application of MEGABolt Self Drilling Anchor

The basic application of MEGABolt SDA is for use in soil conditions where there is a risk of the drill hole collapsing due to pulling out of drill bit, as in the classical anchor installation process. The MEGABolt system is suitable for a variety of different rock conditions and our drill bits are available in various diameters. The MEGABolt SDA system can be deployed for various simultaneous drilling and grouting purposes including:

Slope Stabilization
Strengthening of existing retaining wall
Foundations with micropiles
Soil Nailing
Face stabilization
Temporary support anchoring

Advantages of MEGABolt Self Drilling Anchor

Technological Features of MEGABolt Self Drilling Anchor

MEGABolt’s Self-Drilling anchor bar system comprises:

The hollow anchor features a hollow bore to allow for simultaneous drilling and grouting. The rod is made of a hollow steel tube with an outer round thread. The extension coupling features a patented design that enable direct transmissionbetween each bar reducing losses. Bearing plates are forged steel plates with a
center hole. The hexagonal nuts are manufactured from high precision steel with chamfered edges on both ends and tempered to meet the stringent demands on
anchor specifications.

Steel tube has the sacrificial drill bit at one end and the corresponding nut with a steel end plate. Our SDA are used in a way that hollow steel bar (rod) has a corresponding sacrificial drill bit on its top instead of a classic drill bit. The coupler guarantees a consistent grout cover around the hollow steel bar and that the bar remains in the center of the drilled hole.

Technical Specifications of MEGABolt Self Drilling Anchor

		R25	R32			R38	R51		T76
	Units	R25N	R32N	R32/18	R32S	R38N	R51L	R51N	T76N	T76S
Hollow Bar
Outer Diameter	mm	25	32	32	32	38	51	51	76	76
Internal Diameter	mm	12	20	18	17	21	36	33	51	45
Cross-Sectional Area	mm2	292	363	408	440	717	776	993	1835	2400
Ultimate Tensile Load	kN	200	280	280	360	500	550	800	1600	1900
Yield Load	kN	150	230	230	280	400	450	630	1200	1500
Coupler
Diameter	mm	36	42	42	42	51	63	63	95	95
Length	mm	150	145	145	190	220	140	190	200	200
Hexagonal Nut
Key Size	mm	41	46	46	46	50	75	75	100	100
Length	mm	35	45	45	65	50	70	70	80	80
Bearing Plate
Dimensions	mm	150x150	150x150	200x200	200x200	200x200	200x200	250x250	250x250	250x250
Thickness	mm	8	8	10	12	12	30	40	40	60
Hole Diameter	mm	30	35	35	35	41	60	60	80	80

Grade of steel – EN10083-1
Corrosion Protection Options – Epoxy coating / Hot Dip Galvanisation

Drill bit varieties include:

Our Products:

Mining Equipment Suppliers Supanchor Self Drilling Anchors Casing System Expandable Rock Bolts Coupling System MEGABolt-GFRP Self Drilling Anchor PT Bar Rock Tools Zhuzhou Cemented Carbide

Our Blogs:

Underground Tunnel Tunneling Method Slope Stabilization Methods Slope Protection Techniques What is Slope Failure Self Drilling Anchor Different Types of Slope Failure What is Soil Nailing Technique Threaded Rod Sizes Chart How to Cut Threaded Rod

MEGABolt Self Drilling Anchors (SDA)