Home About Contact News
Minova Weldgrip
Weldgrip Drill Steels
Weldgrip Products

- Machinery

- Universal Grout System
- AM1000-1 Thixotropic Grout
- Grout Pump Systems
- Turmag Drilling Machine
- Gopher Drilling Machine

- Reinforcement

- Self Drilling Steel Anchor System
- Composite Self Drilling Soil Nails
- Gripforce® Composite Soil Nails & Rockbolts
- FT500 Fully Threaded Composite Bar & Tube
- ATB700 Fully Threaded Bar & AT Rockbolts

- Ancillaries


- Drill Bits
- Drill Steels

- Mesh Products

- Double Twisted Hexagonal PVC Coated Mesh
- Gabions & Mattresses

Weldgrip Case Studies
- Dawlish Cliff Stabilisation
- Ramsden Bellhouse & Kent Hill
- Flood Risk Management
- Boness Embankment Stabalisation
- A259 Road Stabilization
- Doveholes Stabilisation
- Kingsand Sea Defence
- Lancaster Canal
- Coalfields Link
- Whitehaven Harbour
- Blaston Hollow
- A638 Rocknetting
- Chatham Dock
- Tondu Iron Works
- Brokenberry Quarry
- A5 - North Wales
- The Sidmouth Cliffs
- Conway Castle
- Glenholt Tunnel
- Athens Metro
- The Bradway Tunnel
- PorthKerry Tunnels
- Conisbrough Tunnel
- Face Salvage
- Mesh Cage System



 




 

 

 
  Weldgrip Drill Steels

Weldgrip Drill Steels are produced from the finest quality Sheffield steel, designed to withstand the severe fatigue stresses developed by today’s high powered drilling machines. Typical applications include mining, quarrying, tunnelling and civil engineering.

Manufactured to strict tolerances and a high standard of finish, the steels can be used in the 'as rolled' condition or carburised for extension and taper equipment. A wide range of drill rods are available in hexagon diamond and turbine sections to suit hard, soft and abrasive drilling conditions.

  • High strength
  • Resistance to high thrust and torque loading
  • Designed to withstand severe fatigue stresses
  • Manufactured to strict tolerances and high finish
  • Suitable for both hard and soft strata and abrasive drilling conditions
  • Large range of sizes to suit all drilling conditions

Our Range Includes:

Roofbolting Steels
7° Fully Carburised Steels
R19 Flexibolt Extension Steels
R22 Extension Steels
R22 Short Bit End Adapters
R22 Long Bit End Adapters
Diamond Section Steels

Diamond Section Extension Drill Steels
Turbin Section Drill Steels

Turbine Section Drill Steel Extension
ETA Drill Rods

  Roofbolting Steels

Thumbnail - Click for  Enlargment

19mm HOLLOW HEXAGON 1/2" BSW ROOFBOLTING STEELS
Reference
Number
Vocab
Number
Overall
Length (mm)
MED 008872
55844552
610
MED 008876
55844553
1000
MED 008895
55844555
1175
MED 008896
55844556
1475
A 19mm Hollow Hexagon Drill Steel with shank end turned and o-ring water seal. Bit 1/2" BSW female thread turned to 19mm diameter x 75mm long.
Reference
Number
Vocab
Number
Overall
Length (mm)
MED 008897
55844557
1775
MED 008898
55844558
2065
MED 008899
55844559
2365
MED 008800
55844550
3000
For use with the Weldgrip Gopher and Tumag Drilling Machines

Thumbnail - Click for  Enlargment
22/19mm HOLLOW HEXAGON 1/2" BSW ROOFBOLTING STEELS
Reference
Number
Vocab
Number
Overall
Length (mm)
MED 008772
55844568
610
MED 008779
55844560
1000
MED 008782
55844561
1175
MED 008788
55844562
1475
A 22/19mm Hollow Hexagon Drill Steel with shank end 19 x 90mm turned and o-ring water seal. Bit end 1/2"BSW
Reference
Number
Vocab
Number
Overall
Length (mm)
MED 008794
55844563
1775
MED 008800
55844564
2065
MED 008806
55844565
2365
MED 008820
55844567
3000
Also available with Straight 22mm Drive

Thumbnail - Click for  Enlargment
22/19mm HOLLOW HEXAGON M16 ROOFBOLTING STEELS
Reference
Number
Vocab
Number
Overall
Length (mm)
M16 008772
55844601
610
M16 008779
55844602
1000
M16 008782
55844603
1175
M16 008788
55844606
1475
A 22/19mm Hollow Hexagon Drill Steel with shank end 19 x 90mm turned and o-ring water seal. Bit end M16
Reference
Number
Vocab
Number
Overall
Length (mm)
M16 008794
55844605
1775
M16 008800
55844604
2065
M16 008806
55844607
2365

Also available with Straight 22mm Drive

Thumbnail - Click for  Enlargment
22mm HOLLOW HEXAGON M16 SQUARE DRIVE ROOFBOLTING STEELS WITH O - RING GROOVE WATER SEAL
Reference
Number
Vocab
Number
Overall
Length (mm)
MED 891506
55844700
600
MED 892006
55844701
1285
MED 894006
55844706
1885
A 22mm Hollow Hexagon Drill Steel with
21 x 50mm round shank and 25mm square collar
Reference
Number
Vocab
Number
Overall
Length (mm)
MED 895006
55844707
2185
MED 897006
55844708
2485
MED 899006
55844710
3110
Bit end M16 female, turned to 22mm diameter x 75mm long
Back to top
  7° TAPER FULLY CARBURISED DRILL STEELS
22mm ROTARY PERCUSSIVE 7° TAPER FULLY CARBURISED DRILL STEELS
Reference
Number
Vocab
Number
Overall
Length (mm)
MEJ 006320
55903540
610
MEJ 006300
55903545
1220
MEJ 006301
55903550
1830
22mm Hexagon X 108mm shank. Bit End 7 taper
Reference
Number
Vocab
Number
Overall
Length (mm)
MEJ 006303
55903560
2435
MEJ 006304
55903565
3050

Back to top
  R19 FLEXIBOLT EXTENSION DRILL STEELS
19mm HEX DRIVE TO R19 MALE STARTER ROD
Reference Number
Vocab Number
Overall Length (mm)
R19010
NA
250
R19001
02128625
550
R19017
02128620
1050
This Starter has a 22mm Hollow Hexagon body.

Thumbnail - Click for  Enlargment
25mm SQUARE DRIVE TO R19 MALE STARTER ROD WITH O - RING GROOVE WATER SEAL
Reference Number
Vocab Number
Overall Length (mm)
R19007
02128624
1135
R19016
02128628
1300
This Starter has a 22mm Hollow Hexagon body.

Thumbnail - Click for  Enlargment
EXTENSION STEEL R19 FEMALE TO R19 MALE
Reference Number
Vocab Number
Overall Length (mm)
R19005
02128621
1050
This Starter has a 22mm Hollow Hexagon body.

Thumbnail - Click for  Enlargment
BIT END STEEL R19 FEMALE TO 1/2" BSW
BIT END
BIT END STEEL R19 FEMALE TO M16
BIT END
Reference
Number
Vocab
Number
Overall
Length (mm)
R19009
02128626
500
R19008
02128622
1000


This Bit End has a 22mm Hollow Hexagon body.
Reference
Number
Vocab
Number
Overall
Length (mm)
R19015
NA
500
R19014
02128623
1000
R19006
02128627
3000
This Bit End has a 22mm Hollow Hexagon body.
Back to top
  R22 EXTENSION DRILL STEELS
19mm HEXAGON SHANK TO R22 MALE  
Reference
Number
Vocab
Number
Overall
Length (mm)
MEF 080132
02128550
250
A 22mm hollow hexagon bodied starter with 19mm x 90mm hexagon shank to male r22 end. The starter has a turned end with o-ring water seal.

Thumbnail - Click for  Enlargment
22mm SQUARE COLLAR TO R22 MALE WITH O-RING GROOVE WATER EEAL
Reference
Number
Vocab
Number
Overall
Length (mm)
MEF 901006
02128552
250
A 21mm X 50mm round shank stater with 25mm square collar.

Thumbnail - Click for  Enlargment
EXTENSION STEEL R22 FEMALE TO R22 MALE
Reference
Number
Vocab
Number
Overall
Length (mm)
MEF 080134
02128553
500
These Steels have a 22mm Hollow Hexagon body
Reference
Number
Vocab
Number
Overall
Length (mm)
MEF 080117
02128554
1000
 
Back to top
  R22 SHORT BIT END ADAPTORS

Thumbnail - Click for  Enlargment
Thumbnail - Click for  Enlargment

R22 FEMALE TO DIN 20MM MALE THREAD
BIT END

R22 FEMALE TO DIN 24MM MALE THREAD
BIT END
Reference
Number
Vocab
Number
Overall
Length (mm)
MEF 080135
02128557
100
The above short bit end steels are 30mm outside
diameter hollow round, with spanner flats.
Reference
Number
Vocab
Number
Overall
Length (mm)
MEF 080136
02128558
100
They have R22 Female right hand rope thread at driving end

Thumbnail - Click for  Enlargment
Thumbnail - Click for  Enlargment
R22 FEMALE TO BAYONET TYPE FEMALE
BIT END
R22 FEMALE TO DIN M16 FEMALE THREAD
BIT END
Reference
Number
Vocab
Number
Overall
Length (mm)
MEF 080115
02128559
100
The above short bit end steels are 30mm outside
diameter hollow round, with spanner flats.
Reference
Number
Vocab
Number
Overall
Length (mm)
MEF 080137
02128560
100
They have R22 Female right hand rope thread at driving end
Back to top
  R22 LONG BIT END ADAPTORS
R22 FEMALE TO DIN 20mm MALE THREAD
BIT END
R22 FEMALE TO DIN M16 FEMALE THREAD
BIT END
Reference
Number
Vocab
Number
Overall
Length (mm)
MEF 080119
02128570
1000
The above long bit end steels are 22mm hollow hexagon body with an R22 female right handrope thread at the driving end.
Reference
Number
Vocab
Number
Overall
Length (mm)
MEF 080122
02128571
1000
The above steel has an M16 female thread bit end turned to 19mm diameter x 75mm long.
Back to top
  DIAMOND SECTION DRILL STEELS
DIAMOND SECTION (COAL) DRILL STEELS  
Reference
Number
Vocab
Number
Overall
Length (mm)
MEG 212106
55841331
680
MEG 212111
55841332
985
MEG 212116
55841334
1290
Solid Diamond Section Drill Steels. 40mm diameter x 22mm body with 19mm x 70mm round shank with slotted end.
Reference
Number
Vocab
Number
Overall
Length (mm)
MEG 212126
55841338
1900
MEG 212136
55841342
2510
PLEASE NOTE : The effective drilling length is the overall length minus 80mm, plus drill bit.
Back to top
  DIAMOND SECTION EXTENSION DRILL STEELS
MALE TO FEMALE FEMALE TO DIN 20
Reference
Number
Vocab
Number
Overall
Length (mm)
MEG 1000 EXT
02128660
1000
MALE TO FEMALE
Reference
Number
Vocab
Number
Overall
Length (mm)
MEG 500 START
02128661
550
Reference
Number
Vocab
Number
Overall
Length (mm)
MEG 500 DIN20
02128662
500
Back to top
  TURBINE SECTION DRILL STEELS
25/19mm TURBINE SECTION DRILL STEELS  
Reference
Number
Vocab
Number
Overall
Length (mm)
MEA 364715
55840401
1175
MEA 364720
55840402
1475
Auger Hollow Turbine Section Drill Steels with a 25mm diameter x 19mm body and 19mm x 90mm hexagon shank turned with o-ring water seal.
1/2"BSW female thread at the bit end.
Reference
Number
Vocab
Number
Overall
Length (mm)
MEA 364725
55840403
1775
MEA 364735
55840405
2365

Thumbnail - Click for  Enlargment
25/19mm SQUARE DRIVE TURBINE SECTION
DRILL STEELS
 
Reference
Number
Vocab
Number
Overall
Length (mm)
CWD 364718
55840421
1175
CWD 364720
55840423
1575
Hollow Turbine Section Drill Steels used for Side bolting.
Reference
Number
Vocab
Number
Overall
Length (mm)
CWD 364725
55840425
1875
CWD 364735
55840428
2485
They have a 22mm Square Collar Drive Shank and 1/2"BSW female Bit End.
Back to top
  TURBINE SECTION DRILL STEEL EXTENSION
TURBINE SECTION EXTENSION STEEL THREADED 1/2" BSW CONNECTOR
Reference
Number
Vocab
Number
Overall
Length (mm)
MEA 364900
55840440
900
The Extension Steel has 1/2" BSW female thread at each end to take the above Connector.
Reference
Number
Vocab
Number
99EXTCONNECTOR
55840441
Back to top
  41mm DIAMETER ETA DRILL RODS
STANDARD 760mm(30") ETA DRILL ROD  
Reference Number
Vocab Number
Overall Length (mm)
MDR30/ETA
55909006
760

Thumbnail - Click for  Enlargment
760mm(30") ETA DRILL ROD WITH NON-RETURN VALVE  
Reference Number
Vocab Number
Overall Length (mm)
MDR30NRV/ETA
55909016
760

Back to top
 

Download the Printable PDF Brochure

If you would like to print this case study you can download the full printable brochure in PDF format.

You will need Adobe Acrobat Reader to view and print the brochure, if you need to download a free version of Acrobat Reader please click here.

Download the Case Study in PDF Format
Divider
Contents Copyright © 2010 Minova Weldgrip Ltd, All Rights Reserved