Home / Montabert / Montabert HC50潜孔钻机密封维修包 86731312 密封套件 86334281 Yamamoto 2686731312
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Montabert HC50潜孔钻机密封维修包 86731312 密封套件 86334281 Yamamoto 2686731312

One seal kit covers your HC50 — no mixing parts, no second-guessing

If you're seeing oil leaks around the shank or front head, or noticing a drop in percussion power, this 86731312 seal kit is what most shops keep on the shelf for the Montabert HC50 drifter. It crosses directly to 86334281 and Yamamoto 2686731312 — same kit, same fit, no modifications needed.

We've seen these seals hold up well in dusty tunnels, wet underground headings, and high-frequency bench drilling. Whether your crew is running anchor bolts or long rounds, getting the right seals in place means fewer mid-shift breakdowns and less hydraulic oil ending up where it shouldn't.

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Montabert HC50潜孔钻机密封维修包 86731312 密封套件 86334281 Yamamoto 2686731312
#316
Highlights
Key Advantages
  • Direct fit for Montabert HC50 — no trimming, no stretching seals to make them work
  • Covers full reseal: piston seals, rod seals, wipers, O-rings, backup rings
  • Commonly used where the machine sees water, grit, and constant high-frequency hammering
  • Exact interchange with 86334281 and Yamamoto 2686731312, so you don't have to cross-reference multiple numbers
Use Cases
Applications
  • Tunneling — keeping advance rates up when the ground is wet and muck gets everywhere
  • Bench drilling — consistent impact, fewer interruptions from seal blow-by
  • Rock bolting — reliable sealing when the drifter runs on a bolting rig all shift
  • Underground production drilling — long-hole setups where downtime for reseal wrecks shift targets
  • Dimension stone and quarry work — seals that cope with dust, heat cycles, and sustained percussion
Specs
Technical Specifications
BrandMontabert
Part Number86731312
Cross References86334281, Yamamoto 2686731312
DescriptionFull seal kit
Fits ModelHC50 hydraulic drifter
Drifter Weight (whole unit)104 kg
Hole Range45 – 76 mm
Shank AdaptersR25 F, R28 F, R32 F, R32 M, R38 M, T38 M
Details
Detailed Description
品牌 :Montabert
零件号 :86731312
描述 :密封套件
适用机型 :Hc 50

现货供应 MONTABERT 液压凿岩机 HC50

 

产品来自 MONTABERT 凿岩机

 

Montabert液压凿岩机是长期破岩机械和钻机设计与制造经验的结晶。
我们的工程师对冲击波理论和传输机制的深入理解，开创性地开发了新概念和渐进式液压减振技术。
我们制造与工程之间的紧密关系、超现代机械加工工具以及圣普列特工厂精密热处理车间，是使我们能够提供被公认为世界领先的液压凿岩机的部分因素。

 

特点 MONTABERT 凿岩机

1

 能量回收阀
该阀允许活塞回弹能量被用于下一次冲击，
为HC系列潜孔钻机带来了明显优势：
• 效率更高
• 无内部峰值压力，避免气蚀
• 最佳保护潜孔钻机
2

 渐进式冲击能量
独特的活塞设计产生完美的长梯形冲击波：
• 能量更好地传输到钻头
• 钻柱应力最小
• 钻头穿透性更好

3

液压减振系统
减振活塞的作用不仅吸收反射能量的损失部分，还确保对工具有恒定的推力：
• 最佳冲击波传输
• 保护潜孔钻机和工具
• 减少振动
4
液压反向冲击
最佳液压反向冲击系统确保真正的反向锤击：
• 在破碎地层中取回工具
• 无钻杆遗留孔内
• 直孔钻进
• 与Montabert钻进控制装置配合使用

表属性 凿岩机

 
重量kg104
总长度mm825 - 996
钻孔范围mm45-76
钎尾适配器 R25 FR28 FR32 FR32 MR38 MT38 M
应用 锚杆支护隧道掘进台阶爆破
液压反向冲击 无
FAQ
FAQ
Will 86731312 work on an HC50 that's been running with aftermarket shanks?
Yes. The seal kit doesn't care which shank you're using. As long as the drifter is an HC50 and you haven't modified the front guide bore, the seals fit correctly. We've supplied these for rigs running R32, R38, and T38 setups.
Our machine has serial number starting with H50-2xxx. Is that still an HC50?
That serial prefix is typical for the HC50 series. The 86731312 kit covers standard HC50 drifters. If you're unsure, just send the full serial and a photo of the front head — we'll confirm before shipping.
What's actually inside this kit?
It's a complete reseal bundle: front head seals, piston seals, wipers, O-rings, and backup rings. Basically everything the shop needs to strip, clean, and reassemble the front section. If you need just the piston seal or a single wiper, we can break a kit — just ask.
How does 86334281 relate to 86731312?
86334281 is an older OEM number for the same seal kit. We stock and ship under 86731312. If your paperwork says 86334281, you'll receive the exact kit — no supersession worries.
What about the Yamamoto number?
Yamamoto 2686731312 is the Japanese market equivalent. It's the same kit, same content. We see it mostly on HC50s imported from Asia. You can order using any of the three numbers.
How do you check these seals before shipping?
We inspect each kit visually for nicks, dry rot, or incorrect packing. Material and hardness specs match the OEM drawings. If a seal doesn't sit right during install, we'll replace the kit — that's rare, but it's covered.
Stock
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