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SB121 Excavator Rock Breaker Straight Hydraulic Hammer for 20–30 Ton Heavy Excavator
SB121 Excavator Rock Breaker Straight Hydraulic Hammer for 20–30 Ton Heavy Excavator
SB121 Excavator Rock Breaker Straight Hydraulic Hammer for 20–30 Ton Heavy Excavator
SB121 Excavator Rock Breaker Straight Hydraulic Hammer for 20–30 Ton Heavy Excavator
SB121 Excavator Rock Breaker Straight Hydraulic Hammer for 20–30 Ton Heavy Excavator
SB121 Excavator Rock Breaker Straight Hydraulic Hammer for 20–30 Ton Heavy Excavator
SB121 Excavator Rock Breaker Straight Hydraulic Hammer for 20–30 Ton Heavy Excavator
SB121 Excavator Rock Breaker Straight Hydraulic Hammer for 20–30 Ton Heavy Excavator
SB121 Excavator Rock Breaker Straight Hydraulic Hammer for 20–30 Ton Heavy Excavator
SB121 Excavator Rock Breaker Straight Hydraulic Hammer for 20–30 Ton Heavy Excavator
Specifications
Feature :
High Duarability,Best Quality,High Power
Model Number :
SB121
Color :
White ，Blue , Customized
Place of Origin :
China
Chisel :
42CrMo
Origin :
CHINA
Supply Ability :
1000pcs/month
Marketing Type :
Hot Product 2022
Payment Terms :
L/C,D/P,D/A,T/T,Western Union
Condition :
100% New
Port :
Guangzhou shenzhen
Delivery Time :
1-7 days
Certifiion :
CE/ISO
Type :
Hydraulic Breaker
Price :
Negotiable
Packaging Details :
Export wooden box
Model :
SB121
MOQ :
1
Compatibleequipment :
Excavators
Core Components :
mainbody
Brand Name :
MSGB
Description

This heavy-duty compact SB121 straight type hydraulic rock breaker is a mainstream medium-large straight hydraulic hammer and standard universal SB121 straight rock hammer, a powerful heavy-load 20–30 ton digger hydraulic attachment equipped with 155mm industrial heavy chisel for narrow-space mine and municipal heavy demolition. As integrated seamless straight cylinder hydraulic breaker without side protruding valve housing, this SB121 straight hammer adopts streamlined straight body layout and built-in high-flow stable directional valve assembly, delivering continuous powerful impact force for medium-hard rock splitting, thick concrete cutting and narrow foundation pit excavation. Compared with side-mounted and box SB121 breakers, the slim straight integrated structure occupies much less lateral space and can smoothly operate in narrow underground tunnels, dense foundation trenches and confined mining working faces; central vertical force transmission reduces lateral vibration and uneven cylinder abrasion. It adopts thickened one-piece high alloy cylinder and anti-cracking 155mm forged chisel, effectively solves the defects of side/box hammers such as large lateral volume, limited narrow-site operation and easy frame fatigue crack, lowers long-term mine maintenance downtime and replacement costs, and is the optimal straight hydraulic breaking equipment for heavy excavators working in space-restricted heavy construction scenarios.


Product Features

This SB121 straight type hydraulic rock breaker is specially optimized for heavy narrow-space construction, owning irreplaceable structural advantages of straight integrated cylinder design:
  1. Fully streamlined straight body without lateral valve protrusion, slim outline, flexible operation in tunnels, narrow trenches and confined mining zones where side/box breakers cannot pass;
  2. Central vertical force transmission structure, uniform internal stress distribution, greatly reduce eccentric cylinder wear and extend cylinder service life;
  3. Matched dedicated SB121 large-flow built-in directional valve, sensitive oil circuit switching, stable high striking frequency, no intermittent hitting or valve blockage under long heavy load;
  4. Thickened integrated high tensile alloy cylinder wall, strong pressure and impact resistance, support 24-hour non-stop mine continuous breaking;
  5. Upgraded built-in multi-stage shock buffer assembly, effectively isolate lateral vibration transmitted to excavator boom and main hydraulic pump;
  6. Full universal SB121 spare part system, all 155mm chisels, seal kits, nitrogen charging valves and pins fully interchangeable with side & box SB121 hammer, convenient global bulk procurement.

Product Technology

The SB121 straight hydraulic hammer adopts medium-large heavy straight breaker exclusive integrated forging and low-eccentric vibration hydraulic matching technology:
  1. Cylinder blank one-piece vacuum forged by high-purity high tensile alloy steel, CNC full inner & outer circle ultra-precision turning, mirror smooth inner wall for unobstructed large hydraulic flow;
  2. Central straight force transfer design eliminates lateral eccentric stress concentration defect existing in side-mounted and box hydraulic breakers;
  3. Core large piston integral quenching & tempering deep heat treatment, excellent impact anti-fatigue performance for all-day mine continuous operation;
  4. 155mm chisel four-side forging + vacuum infiltration alloy hardening craft, balance ultra surface wear resistance and internal anti-fracture toughness;
  5. Multi-layer composite high-temperature dustproof sealing system, resist mine rock dust and muddy water, ultra-low oil leakage rate under long cyclic heavy work;
  6. Each finished SB121 straight hammer passes high-pressure endurance test, 24-hour continuous striking aging test and cylinder eccentric wear inspection before delivery.

Production Process

High tensile alloy steel raw material inspection → One-piece cylinder vacuum hot forging forming → CNC inner hole & outer circle ultra-precision mirror polishing → Large piston deep quenching & tempering heat treatment → 155mm chisel four-side forging + alloy infiltration hardening → SB121 large-flow internal directional valve assembly → Multi-layer high-temperature composite dustproof seal installation → Straight hammer multi-stage buffer component matching → High-pressure large-flow hydraulic matching calibration test → 24-hour non-stop continuous striking aging test → Cylinder eccentric wear & air tightness inspection → Anti-rust heavy-duty anti-corrosion coating treatment → Shockproof layered packaging & global sea-air delivery


Company Service

We are professional manufacturer & bulk wholesaler of medium-large heavy SB series mining hydraulic breakers, specializing in mass supply of SB121 straight type hydraulic rock breaker, side & box SB121 hammer and full series SB121 heavy breaker spare parts.

All straight heavy mining hammers are manufactured according to underground mine & narrow foundation heavy-load industrial standards, passing complete high-pressure endurance, low vibration and continuous striking tests before shipment. We support OEM logo customization, sample trial order, medium batch retail and large-scale mine project wholesale. Sufficient spot inventory ensures fast worldwide sea & air transportation. We provide full one-stop service: pre-sales excavator tonnage & hydraulic flow matching consultation, on-site installation technical guidance, mine heavy-load fault troubleshooting and long-term after-sales quality warranty. We stably supply global underground mining enterprises, large municipal construction groups, stone yards and heavy machinery dealers all year round.

SB121 Excavator Rock Breaker Straight Hydraulic Hammer for 20–30 Ton Heavy Excavator

FAQ

Q1: What tonnage excavator matches SB121 straight hydraulic breaker?

A1: This SB121 straight rock hammer is exclusively designed for 24–28 ton medium-large heavy crawler excavators, perfectly matching high-pressure large-flow hydraulic output of heavy diggers without hydraulic overload damage to main pump.

Q2: What is the core difference between straight SB121 and box/side SB121 breaker?

A2: Straight hammer adopts slim seamless integrated cylinder without side valve protrusion, can enter narrow tunnels and deep trenches; box and side hammers have obvious lateral protruding structure, limited operation space and easy eccentric vibration wear.

Q3: Can standard SB121 155mm chisel and spare parts be used on this straight SB121 breaker?

A3: Yes. This SB121 straight type hydraulic rock breaker follows universal SB121 industrial standard, all 155mm chisels, seal kits, nitrogen charging valves and pins are 100% interchangeable with box & side SB121.

Q4: Is SB121 straight hammer suitable for underground mine tunnel excavation work?

A4: Perfectly suitable. Slim straight body with no lateral protrusion can freely pass narrow mine tunnels with limited clearance, low eccentric vibration reduces tunnel wall collision and equipment wear, far more adaptable than box and side breakers.

Q5: Will straight SB121 cylinder produce serious eccentric wear after long heavy breaking?

A5: No. Central vertical force transmission structure eliminates lateral eccentric stress; matched multi-stage built-in buffer further balance vibration, cylinder uniform stress, effectively avoid eccentric wear even after years of continuous heavy mine operation.

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SB121 Excavator Rock Breaker Straight Hydraulic Hammer for 20–30 Ton Heavy Excavator

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Product Detail
Feature :
High Duarability,Best Quality,High Power
Model Number :
SB121
Color :
White ，Blue , Customized
Place of Origin :
China
Chisel :
42CrMo
Origin :
CHINA
Contact Supplier
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SB121 Excavator Rock Breaker Straight Hydraulic Hammer for 20–30 Ton Heavy Excavator
SB121 Excavator Rock Breaker Straight Hydraulic Hammer for 20–30 Ton Heavy Excavator
SB121 Excavator Rock Breaker Straight Hydraulic Hammer for 20–30 Ton Heavy Excavator
SB121 Excavator Rock Breaker Straight Hydraulic Hammer for 20–30 Ton Heavy Excavator
SB121 Excavator Rock Breaker Straight Hydraulic Hammer for 20–30 Ton Heavy Excavator

Guangzhou Liantuo Machinery Trading Company

Verified Supplier
1 Years
guangdong, guangzhou
Since 2008
Business Type :
Manufacturer
Main Products :
Excavator Hydraulic Breaker, Hydraulic Breaker Chisel, Hydraulic Breaker Parts
Total Annual :
20000000-25000000
Employee Number :
90~100
Certification Level :
Verified Supplier
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