JCB HM380Hard Rock Blunt Tool
Part code: 218033944
HKM G120 Hard Rock Blunt Tool
- Breaker: HKM G120
- Tool type: Hard rock blunt tool
- Diameter: 120 mm
- Length: 1100 mm
- Weight: 91 kg
- Material: genuine HKM tool, heat-treated alloy steel
- Delivery: fast delivery from stock or made in 5 working days
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*Representative image. May vary depending on brand and model.
Hard rock blunt tool for the HKM G120 hydraulic breaker: Ø120 mm diameter, 1100 mm length, 91 kg. Genuine HKM tool, made from heat-treated alloy steel; fast delivery from stock or made in 5 working days.
Technical Data
| Breaker Brand / Model | HKM G120 |
|---|---|
| Tool Type | Blunt Tool |
| Option | Hard Rock |
| Diameter | 120 mm |
| Overall Length | 1100 mm |
| Weight | 91 kg |
| Material | High-nickel alloy steel, special hardening |
| Product Code | 292007944 |
| Delivery | Fast delivery from stock or made in 5 working days |
Where Is a Blunt Tool Used?
Blunt tools are designed to channel the full impact energy of the breaker straight into the toughest materials. They are built for maximum energy transfer and durability.
- Primary demolition
- Secondary demolition
- Secondary breaking
- Boom mounted applications
- Tunneling
According to the material table in our manual, it is recommended for large block breaking, crystalline rock such as granite and gabbro, and recycling of demolition debris.
The hard rock version is made from a high-nickel alloy and goes through a special hardening process. It withstands extreme impact forces and abrasive rock, and is the preferred choice for heavy quarrying and mining.
Correct Use: Three Rules
- Work perpendicular. Keep the breaker at a right angle to the surface and avoid side loads. Angled pushing wears the bushings and moves the piston off the tool axis.
- Do not pry. Rocking the tool like a lever before it is fully seated, or rotating the breaker while the tool is embedded, is the most common cause of tool breakage.
- Do not blank fire. If the breaker strikes without the tool touching the surface, all the energy goes into the retaining pins and the tool's pin slots; pins break and slots are destroyed.
Breakage caused by ignoring these rules is not covered by the warranty. See our tool selection guide, the tool use section and the Tool User Manual and Warranty Terms.
Other Tool Types for HKM G120
| Tool Type and Size | Options |
|---|---|
| Moil Point ToolØ120 x 1100 mm | Standard · Dust Grooved · Hard Rock · Dust Grooved + Hard Rock |
| Chisel ToolØ120 x 1100 mm | Standard · Dust Grooved · Hard Rock · Dust Grooved + Hard Rock |
| Pyramid ToolØ120 x 1100 mm | Standard · Dust Grooved · Hard Rock · Dust Grooved + Hard Rock |
| Blunt ToolØ120 x 1100 mm | Standard · Hard Rock (this page) |
Wide chisel, tarmac cutter and driving tools are made to order; if you need one of these for your HKM G120, write to sales@hkm.com.tr.
HKM G120 Spare Parts
Check the bushings when you change the tool: worn lower and upper bushings can break both the tool and the piston.
- HKM G120 Lower Bushing
- HKM G120 Shank Bushing
- HKM G120 Retaining Pin
- HKM G120 Piston
- HKM G120 Tie Rod
- HKM G120 Diaphragm
- HKM G120 Front Head
- HKM G120 Seal Kit
For other HKM models see HKM tools and spare parts.
Manufacturing, Delivery and Warranty
HKM manufactures this genuine HKM tool from heat-treated alloy steel. Tools in stock ship quickly; if not in stock, the tool is made in 5 working days. Transport time is added depending on the method (road, air, sea).
Tools are warranted against manufacturing defects only; breakage caused by improper use is not covered.
Frequently Asked Questions
Q: What are the dimensions of the HKM G120 hard rock blunt tool?
A: The HKM G120 hard rock blunt tool is made for the HKM G120 hydraulic breaker: diameter 120 mm, overall length 1100 mm, weight 91 kg. Just state your breaker brand and model when you order.
Q: Will another tool with the same diameter and length fit my HKM G120?
A: Not always. The position and shape of the retaining pin slot change with brand and model; a tool with the same diameter and length may not fit. This tool is made to the slot dimensions of the HKM G120.
Q: What is the HKM G120 hard rock blunt tool used for?
A: The HKM G120 hard rock blunt tool is mainly used for: primary demolition, secondary demolition, secondary breaking, boom mounted applications, tunneling. According to the material table in our manual, it is recommended for large block breaking, crystalline rock such as granite and gabbro, and recycling of demolition debris.
Q: When should I choose a hard rock blunt tool for the HKM G120?
A: The hard rock version is made from a high-nickel alloy and goes through a special hardening process. It withstands extreme impact forces and abrasive rock, and is the preferred choice for heavy quarrying and mining. For general demolition and construction the standard tool is enough.
Q: Which other tool types are available for the HKM G120?
A: We make 14 different tools for the HKM G120: moil point tools, chisel tools, pyramid tools, blunt tools, with dust grooved and hard rock options. You can reach all of them from the Other Tool Types table on this page.
Q: How long is the delivery time for the HKM G120 hard rock blunt tool?
A: If the HKM G120 hard rock blunt tool is in stock, it ships quickly. If not, it is made in 5 working days; transport time is added depending on the shipping method.
Q: Is the HKM G120 hard rock blunt tool covered by warranty?
A: Like all HKM breaker tools, the HKM G120 hard rock blunt tool is warranted against manufacturing defects only. The fracture surface is examined; if the fracture started from a flaw inside the material, the tool is covered. Breakage from prying, blank firing, rotating the embedded tool or working with worn bushings is not covered.
Q: What shortens the life of the HKM G120 hard rock blunt tool the most?
A: Prying before the tool is fully seated, blank firing, striking one spot for too long, insufficient or wrong grease, and working with worn bushings.
Q: What else should I check when I change the tool on my HKM G120?
A: Compare the inner diameters of the lower and upper bushings and the thrust bushing surface with the tolerances in your breaker's service manual. Worn bushings move the tool and piston off axis. The HKM G120 bushings are listed in the Spare Parts section on this page.
Q: What other names is the HKM G120 hard rock blunt tool known by?
A: It is also called “blunt”, “flat end”, “blunt point”. Breaker tools in general are also known as breaker chisels, working tools or hammer tools.
Product Information
- Weight (kg)
- 91
- Dimensions
- 120x1100x120 cm
- Warranty
- Please review the Tool User Manual and Warranty Terms document on this page. HKM breaker tools are warranted against manufacturing defects only. If a tool breaks, the fracture surface is examined; if the fracture started from a flaw inside the material, the tool is covered by the warranty. Damage caused by improper use is not covered: prying before the tool is fully seated, blank firing, rotating or side-loading the breaker while the tool is embedded, striking the surface with the tool using the boom, and working with worn bushings.
- Delivery Information
- Delivery time is 7 business days for orders within Turkiye. For orders outside Turkiye, the transport time will be added. But for the products that we have in stock, the delivery time will be shortened significantly. For more information; contact sales@hkm.com.tr
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