Production Process
Through/Side/Hex Bolt:
Material: 42crmo
Bolt has 10.9 Grade and 12.9 Grade
Heating processing →Quench →Temper→Surface treatment:natural colour and black coating
Mounting Pin:
Material: 42crmo
Hardening→Tempering-finish machining→ Mid frequency induction hardening →Outside diameter grinding
The depth of quenching is 3MM and the high surface hardness,with high Durability.
Special checkered piston:
Material: 20cr2*114
thermal treatment use overall carburizing →quenching heat treatment → Processing using high precisioin checkered grinding technology
With high surface precision and good fineness . Hydraulic oil can adhere to the piston surface well and forming oil film , with good lubricity and abrasive resistance , to extend the piston’s life , and keep the force of impact .
Custom Piston:
Material: 20cr2*114
Our company can according to the customer request to make special specifiCATEEEEEEEEEEion piston: According to the assembly need grinding piston diameter, Control piston in tolerance range, make piston and cylinder body between the fit clearance to achieve the best effect.
Inner Bush:
Material: 42crmo or 20crmo
Forging blank → finish machining → carburizing→ quenching→Fine grinding
Product accuracy is high and stand wear and tear .
Front cover:
Material: 42crmo or 20crmo
Forging blank→finishing (finish machining) → Carburizing heat treatment →assembly surface fine grinding
Product is wear-resisting and impact resistance.
Breaker SB81 SB81N Hydraulic Breaker Piston High Alloy Steel For Hydraulic Breaker
| Part Name | Piston |
| Part Model | SB81 |
| Material | 42CrMo |
| Size | Standard |
| Hardness | Hard Enough |
| Feature | Durable |
| AppliCATEEEEEEEEEEEEion | Hydraulic Rock Breaker Hammer |
| OEM | Acceptable |
| MOQ | 1 PCS |
| Warranty | 3 Months |
| Delivery Time | 2-7 Days |
Related Models
| SB10 | SB20 | SB30 | SB40 | SB50 | SB60 | SB60TR-P | SB70 | SB70TR-P |
| SB81N | SB81 | SB81TR-P | SB81A | SB85 | SB121 | SB121TR-P | SB130 | SB130TR-P |
| SB140 | SB140TR-P | SB147 | SU+85 | SB85 | SU+125 | SB125 | SB151 | SB151TR-P |
| SB10TS-P | SB20TS-P | SB40TS-P | SB43TS-P | SB60TS-P | SB70TS-P | SB81TS-P | SB100TS-P | SB121TS-P |
| SB130TS-P | SB140TS-P | SB151TS-P | SQ10 | SQ20 | SQ30 | SQ35 | SQ40 | SQ43 |
| SQ45 | SQ50 | SQ60 | SQ70 | SQ80 | SQ100 | SQ120 | SQ130 | SQ140 |
| SQ150 | SQ181 | ET200 | ET300 | SB150 | SB157 | | | |
Breaker Parts Hydraulic Hammer Percussion Piston
| Model number | Total length | Head length | Total length of tank | Outside diameter of strike head | Large diameter of oil tank | Piston ring | Tank length one | Tank length two |
| GB2T | 480 | 195 | 123 | 70 | 77 | 68 | 55 | 25 |
| GB8T | 790 | 324 | 184 | 140 | 150.5 | 138 | 96 | 40 |
| GB8AT | 732/734 | 307/308 | 184 | 140 | 150.5 | 138 | 100/96 | 35 |
| SB20 | 407 | 163 | 110 | 45 | 51 | 43.5 | 44 | 27 |
| SB40(GT30) | 485 | 189 | 130 | 70 | 77 | 68 | 59 | 31 |
| SB43 | 591 | 251 | 158 | 75 | 82.5 | 73 | 70 | 39 |
| SB45 | 660 | 284 | 165 | 85 | 92.5/92 | 83.5 | 81 | 45 |
| SB50 | 679/688 | 275/284 | 187 | 100 | 108.5 | 98 | 89/79 | 45 |
| SB60 | 738 | 339 | 185 | 125 | 135 | 123.5 | 85 | 40 |
| SB81 | 790 | 324 | 184 | 140 | 150.5 | 138 | 96 | 30 |
| SB81N | 778 | 317/321 | 197/191 | 135 | 146 | 133 | 84 | 44 |
| SB100 | 820/825 | 355/357 | 225/226 | 150 | 162.5 | 147/145 | 103/104 | 47 |
| SB121 | 832 | 385 | 216 | 160 | 173.5 | 157 | 110 | 54 |
| SB131/988C length | 915/988 | 413/411 | 214/244 | 170 | 184.5 | 167 | 109/110 | 59/70 |
| SB140 | 1070 | 433 | 261 | 175 | 190 | 172 | 130 | 90 |
| SB151 | 1120 | 518 | 267 | 180 | 195.5 | 177 | 142 | 61 |
Main Spare Parts:
| → Through bolts: Longer service life by to applied heat treatment. |
| → Back head: Using 20CrMo steel, impact energy is accumulated due to charged nitrogen gas in the block. |
| → Front Head: Using 20CrMo steel, high quality with long using life . |
| → Valve: using grinding processing to improve the size presicion, position accuracy & coordination accuracy. |
| → Cylinder body: Material: 20CrMo, high temerature quenching treatment, grinding processing; |
| → Piston: Longer service life by optimized design and high quality special steel. |
| → Back Head: Using 20CrMo material provided by domestic famous manufacturer, forging again and again to make |
| internal organization more tight and increasing the hydraulic breaker abrasion resistance. |
| → Chisel: The specially heat treated chisel is directly applied to break rocks. |
| Four types for your choise: Moil, Blunt, Flat, Conical Point. The material is 42Crmo. |
| →Main Body: Including Front head, cylinder and back head. Each part is in best performance. |
| → Seal Kit: We can supply all brands seal kit which are most famous brand in the business line. |
More Hammer Models Piston
| Soosan | SB40 SB43 SB45 SB50 SB60 SB81N SB81 SB81A SB100 SB121 SB130 SB140 SB151 |
| Furukawa | HB20G HB30G HB40G HB8G HB10G HB5G HB15G |
| F19 F20 F22 F35 F70 FX47 F45 FS37 F27 FS22 F27 F12 F9 F6 |
| T | TNB150 TNB151 TNB14E TNB5M TNB4E TNB6E TNB7E TNB14B TNB14 TNB190 TNB230 |
| General | GB8AT GB8T GB8F GB2T GB5T GB4T GB6T GB540E GB580E |
| NPK | NPK H2X NPK H4X NPK H6X NPK H-7X NPK H-9X NPK H-10X |
| NPK H-10XB E-12X E210A/B NPK NPK H12XB NPK H14X NPK H20X |
| Hanwoo | RHB323 RHB313 RHB305 RHB325 RHB326 RHB328 RHB330 RHB340 RHB350 |
| | THBB401 THBB801 THBB1600 THBB2000 |
| Daemo | S2100 S2200 S2300 S3000 |
| HM960 HM951 HM720 HM980 HM1000 HM1500 |
| Konan | MKB1500 MKB1600 MKB1700 |
| MSB | MS600 Saga250 |
| Okada | OUB308 OUB312 OUB316 |
Company Show
Guangzhou Huilian Machinery Equipment Co. Ltd. is a professional supplier for hydraulic breaker parts and excavator parts and OEM hydraulic seals manufacturer. We specialize in completed seal kits and separate seals for hydraulic breaker and excavator more than Ten years in Guangzhou, China. Koko Shop supply almost all brands breakers' parts like Seal kits, Diaphragm, Piston, Chisel, Wear Bush upper and lower, Rod Pin, Through Bolts, Side Bolts, Control Valve,Front Head, Cylinder, Accumulator, N2 Gas Charging Kit, etc. We insist on high quality parts with genuine and OEM after market replacement parts.
Specializes in:
--Excavator spare parts
--Hydraulic breaker parts
Product Tags:
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SB81 SB81N Hydraulic Breaker Piston High Alloy Steel For Hydraulic Breaker Images
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