Universal Demolition Block™ (UDB™) by Alford Technologies

Companies & Organizations:

United Kingdom of Great Britain and Northern Ireland

Alford Technologies Ltd.
17-18 Glenmore Business Park Bumpers Farm Industrial Estate
Chippenham, Wiltshire SN14 6BB

The Universal Demolition Block™ (UDB™) is a deceptively simple charge designed to be used as a small, standard explosive charge for demolition and as a booster charge for charges such as the half barmine which is commonly used for breaching adobe walls.


The design was partly inspired by the WW2 Clamshell Mine which was used widely as a demolition and sabotage tool and which also contained 225g of explosive.  Using the UDB™ as a small, standard charge will allow people to be more economical with their explosive, and to make it count, very important when they have to carry it.


The UDB consists of a matchbox concept of two sliding parts – the tray for holding up to 250g of plastic explosive and an outer sleeve which contains and protects the explosive and provides several means of attachment and initiation.


Individual charges may be joined to each other using integral interlocking projections on the sides to make larger charges and three initiation points are provided: two on the side and one on the end. The standard Alford Split Screw is used for inserting and gripping detonators, detcord boosters or the Alford Plain Detonator Adaptors (PDAs). Long zip-ties are provided as a robust means of fixing to targets.


Name                                     Part No.          NSN No.                      Contents


UDB 250                                DB1001                                              1 Charge

UDB 250                                DB1002          1385-99-288-7071      12 Charges

UDB 500                                DB5001                                              1 Charge

UDB 500                                DB5901                                              8 Charges





HydroTape™                          HT1015         7510-99-153-6251       1 Roll

Breacher’s Tape™                 TP1501          7510-99-497-9503       1 Roll

Det Cord Clips™                    DC1901         1375-99-601-9851       20 per pack

Mini Det Cord Clips™            DC2901          1375-99-155-5887       20 per pack

Det Cord Junction Clips™      DJ1901                                               20 per pack



Related Products


Dioplex™, 20mm, 0.5m         DX1202                                               1 Charge

Dioplex™, 20mm, 1m            DX1201                                               1 Charge

Dioplex™, 30mm, 0.5m         DX1302                                               1 Charge

Dioplex™, 30mm, 1m            DX1301                                               1 Charge

Dioplex™, 40mm, 0.5m         DX5402          1377-99-133-8741        1 Charge

Dioplex™, 40mm, 1m            DX5401          1377-99-737-3175        1 Charge

Dioplex™, 80mm, 0.5m         DX5802          1377-99-168-0577        1 Charge

Dioplex™, 80mm, 1m            DX5801          1377-99-601-9310        1 Charge

Rebar Cutter™, 15mm          RB1500           1375-99-463-9371        6 Charges

Rebar Cutter™, 32mm          RB3200           1375-99-538-7917        3 Charges

Rebar Cutter™, 50mm          RB5000           1375-99-391-7033        3 Charge

Defense Products & Services: Universal Demolition Block™ (UDB™) by Alford Technologies
Companies & Organizations: 
Defense Products & Services Sectors: Charges, demolition
Description: Universal Demolition Block™ (UDB™)
Source of Information: Alford Technologies Ltd