Hammer

2.5" RF25BR Hammer

Hole Diameter 70 – 80 mm (2 3/4 – 3 15/99")

Operating Pressure 8 – 25 bar (116 – 363 psi)

Shank Type ST / BR Thread

Key Features

Hammer to Drill a hole of dia 70 - 80 mm (2 3/4 - 3 15/99").

ST25BR is a valve type hammer designed for high performance at low operating air pressures.

BR2 bit has a strong robust design to with stand heavy duty application and it does not use foot valves which reduces the possibility of hammer failure.

ST25BR Hammer maximizes energy output and reduces service requirements.

Wear Sleeve is not reversible.

Two Start threads on Top sub and Drive sub ensure easy coupling/uncoupling of hammer.

All critical internal components are heat treated under strict control to maximize tool longevity.

An overall cost-effective and user friendly tool for use in the most demanding conditions.

Applications

Construction Quarry

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Technical Details

Specifications & Performance

HAMMER SPECIFICATION

Sl.No.	Description	Unit	Dimension
1	HAMMER LENGTH W/O BIT	mm	810.0
2	HAMMER OUTSIDE DIA	mm	62.0
3	HAMMER WEIGHT	kg	13.0
4	CYLINDER BORE	mm	42.7
5	PISTON STROKE	mm	80.0 (approx.)
6	PISTON WEIGHT	kg	1.75
7	HOLE SIZES	mm	70-80
8	WRENCH SIZE A/F	mm	A/ F 48.0/ W-32.0 mm
9	SUITABLE SHANK	--	BR2

2.5" RF25BR HAMMER AIR CONSUMPTION

PSI	100	150	200	250
CFM	75	135	205	270

ST25BR AIR CONSUMPTION GRAPH

Technical Consultation

Need Expert Technical Advice?

Connect directly with our engineering team to select the optimal drilling tool configuration for your geological conditions.

Direct Engineering Support +91 8374676095

Technical Inquiries [email protected]

Manufacturing Plant Green Hills Colony, Moula-Ali, Hyderabad

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