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BR1 & BR2VALVED DTH HAMMERTechnical Brochure Certificate Number 2446/00
ISO9001
TEC
HN
ICA
L S
PE
CIF
ICAT
ION
S
Weight (less bit)Length (less bit)Outside dia.Piston weightStroke
17.6Ibs27.9"2.0"2.2Ibs3.0”
8kgs709mm51mm1kg76mm
28.6Ibs33"2.44"4.0Ibs4.0”
13kgs838mm62mm1.8kg101mm
BR1English Metric
COMPONENT PARTS
Bulroc Valved Type HammerBR1 (60-64mm) BR2 (70-80mm) dia hole
AIR CONSUMPTIONHAMMER SPECIFICATIONSPSI Bar Hammer CFM M3/minBR2
English Metric
BUTTON BITS
6064707680
BBS011FF060BBS011FF064
BBS012FF070BBS012FF076BBS012FF080
Bit Dia. BR1 BR2
3
11
16
17
99
88
7
5
6
1
3
18
1212
15
14
111
4
2
Ref.
123456789
101112131415161718
Description
WearsleeveInner CylinderBearingPistonAir Metering PlugBevelled Valve HousingCentraliserDisc ValveValve ChestBackheadBackhead ‘O’ RingBit Retaining RingBackhead SpacerChuckChuck Sealing RingCheck ValveCheck Valve SpringSplit Spacer
Complete Hammer
Part No BR1
HSB1S00HSB1S01HSB1S02HSB1S03IPP04HSB1S04HSB1S05HSB1S06HSB1S07HSB1S3810FIPBOR06IPBR03IPBS05HSB1S35STIPCS05IPCV06IPCVS05IPSS07
BR1S01
Part No BR2
HSB2S00HSB2S01HSB2S02HSB2S03IPP04HSB2S04HSB2S05HSB2S06HSB2S07HSB2S3811FHSB2S14HSB2S37STHSB2S12HSB2S35STHSB2S13IPRCV01IPRCVS01HSB2S36ST
BR2S01
101010
100
150
200
250
7
10.3
13.8
17.2
BR1BR2BR1BR2BR1BR2BR1BR2
17.7926.6532.6948.9650.3275.3870.33105.35
0.500.750.931.391.432.131.992.98
Manufacturers of Rock Drilling EquipmentTurnoaks Business Park, Burley Close, Chesterfield ,Derbyshire S40 2UBTel: +44(0) 1246 544700 Fax: +44(0) 1246 544701E-mail: [email protected] Website bulroc.com BROBR12A 25/3/13
13The BR1 and BR2 are both valved type hammers designedfor high performance at low operating air pressures.
Simplicity of design, ease of service and low air consumptionare all factors which combine to make these hammers robustand reliable drilling tools. Both hammers are available asstandard with box backheads, RD40 for the BR1 and RD50for the BR2. However alternative backhead options are availableon request.
The BR1 and BR2 hammers both incorporate a positive fittingcheck valve to guard against the ingress of ground water debriswhen the air is shut off.