T thread self drilling anchor bars

T-Thread Self Drilling Anchor Bolt Mining Machines SDA All Thread Hollow Bar

Material	Alloy Structure Steel
Processing Type	Forging
Application	Radial bolting/Slope stabilization/Forepoling/Micro injection pile/Face stabilization/Temporary support anchor/Portal preparation
Advantage	Good quality and lower price.
Color	Based on customers
MOQ	No MOQ required for testing and trial order
Certification	ISO

Product Description

It is mainly applied in complex layer formation of broken rock, loose soil, weathering rock and so on which is difficult to make the hole. It is good for supporting and improving surrounding rock, and can achieve good supporting effect in tunnel support, radial support and various types of slope treatment projects.

Size	O.D (mm)	I.D (mm)	Ultimate Load (kN)	Yield Load (kN)	Weight (kg/meter)
T30-11	30	11	320	260	3.3
T30-14	30	14	275	220	2.9
T30-16	30	16	245	190	2.7
T40-16	40	16	660	525	7.1
T40-20	40	20	540	425	5.6
T52-26	52	26	930	730	10
T73-56	73	56	1035	830	10.8
T73-53	73	53	1160	970	14
T73-45	73	45	1600	1270	17.5
T76-51	76	51	1600	1200	16.53
T76-47	76	47	1900	1500	19.20

Features of hollow grounting anchor bolt

Particularly suitable for difficult ground conditions.
A high rate of installation since drilling, placing and grouting can be performed in one single operation.
Self drilling system eliminates the requirement for a cased borehole.
Installation with simultaneous drilling and grouting possible.
Easy installation in all directions, also upwards.
Suitable for working in limited space, height and in areas of difficult access.
Simple post grouting system. • Hot-dipped galvanizing for corrosion protection

Competitive Advantage

Very competitive price
Professinal service team and special after sale team
Fast response about all questions from clients
Design based on your specific requirements
Delivery on time

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Frequently Asked Questions

Q：Are you manufacturery or trade company?

A:We are manufacturer, has more than 10 years of professional production experience .Products including DTH Hammer and Bit、Drill Pipe Casing System、Tricone Bit、Top Hammer Drill Rod、 Drill Bit、Tapper Button Bit and Rod、 Integral Drill Rod etc.

Q: Do you offer warranty on your products?

A: Yes. For different products we offer different warranty that cover all manufacturing defects in materials and workmanship. The longest period of warranty is 6 months after shipping date.

Q: How is your quality control?

A: We have our own experienced quality control. There will be strict inspection and testing for every order before shipping out.

Q: How long is your delivery time?

A: 1-5days for the products in stock； regular order delivery in 2-3weeks.

Q: After Services

A:(1) Our sales team will response for your question within 24 hours (Holidays included).

(2) Technical Support will be available in any time.

(3)Free replacement will provide once the failure confirmed caused by our product quality.

Q:Methods of Payment

A:We offer different payment terms, including T/T, D/A, D/P, L/C and O/A, etc. You can choose your preferred payment methods before we shipping the goods.

Q: Do you offer OEM service?

A:Yes, we can offer OEM service if you have regular requirement.

Q: Where did you export ?

A:Till 2022 we have exported to 50+ countries.