BR3 / BR33 - Givens International Drilling Supplies, Inc. · The BR3 and BR33 are both valved type...
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BR3 / BR33 VALVED DTH HAMMER Technical Brochure Certificate Number 2446/00 ISO9001
Transcript of BR3 / BR33 - Givens International Drilling Supplies, Inc. · The BR3 and BR33 are both valved type...
BR3 / BR33VALVED DTH HAMMERTechnical Brochure
Certificate Number 2446/00ISO9001
TEC
HN
ICA
L S
PE
CIF
ICAT
ION
S
BR3English METRIC
Bulroc Valved Type HammerBR3 (85-95mm) BR33 (90-100mm) dia hole
AIR CONSUMPTIONHAMMER SPECIFICATIONSPSI Bar Hammer CFM M3/minBR33
English Metric
COMPONENT PARTS
The BR3 and BR33 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 as standard with 23/8”API Reg.pin.
The BR3 and BR33 hammers both incorporate a positive fittingcheck valve to guard against the ingress of ground water debriswhen the air is shut off.
BUTTON BITS
859095
100
BBS013DH085BBS013DH090BBS013DH095
BBS018DH090BBS018DH095BBS018DH100
Bit Dia. BR3 BR33
Ref
123456789
101112131415161718
Description
WearsleeveInner CylinderBearingPistonAir Metering PlugBevelled Valve HousingCentraliserDisc ValveValve ChestBackheadBackhead ‘O’RingBit Retaining RingBackhead SpacerChuckChuck SealCheck ValveSpringSplit Spacer
Complete Hammer
Part No BR3
HSB3S00HSB3S01HSB3S02HSB3S03IPP03HSB3S04IPC1IPCDV1HSB3S07HSB3S3801MIPBOR01HSB3S37STHSB3S12HSB3S35STHSB3S13IPRCV01IPPRCVS01HSB3S36ST
BR3S01
Part No BR33
HSB3300HSB3301HSB3302HSB3303IPP03HSB3304IPC1IPCDV1HSB3307HSB333801MIPBOR01HSB3337018IPBS04HSB3335018IPBS01IPRCV01IPRCVS01HSB3336ST
BR33S01
100
150
200
250
7
10.3
13.8
17.2
BR3BR33BR3BR33BR3BR33BR3BR33
38.3353.8670.4298.95108.41152.34151.51212.90
1.091.531.992.803.074.314.296.03
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 BROBR33C 25/3/13
13
3
11
16
17
99
88
7
5
6
1
3
18
1212
15
14
111
4
2
101010
Weight (less bit)Length (less bit)Outside dia.Piston WeightStroke
48.5 lbs30.2”3.07”5.5 lbs4.0”
22 kgs768 mm78 mm2.5 kgs101 mm
55 lbs30.2”3.225”7.3 lbs4.0”
25 kgs768 mm82 mm3.3 kgs101 mm
