Highlights
Key Advantages
- Drops straight into the accumulator on YH65/70s/80a/80rp/95 rigs — same fit as the factory diaphragm
- Built by Yamamoto, the company that makes these for Ingersoll Rand, so material compound and thickness match original spec
- Takes the repetitive flexing from 2,000–3,000 blows per minute without cracking or delaminating
- Less unplanned downtime: swapping a worn diaphragm is a 30-minute job on site, no need to pull the whole hammer
- Works across a wide temperature band — doesn't stiffen up in cold starts or soften excessively when the hydraulic tank is hot
Use Cases
Applications
- Quarry face drilling and benching with YH-series drifters
- Underground development and production drilling in hard rock mines
- Surface crawler drills running Ingersoll Rand hydraulic hammers
- Tunnel jumbos where the hammer sees back pressure and high ambient temps
- Water well and geothermal drilling where consistent impact matters
Specs
Technical Specifications
| Yamamoto part number | 2651206407 |
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| Ingersoll Rand part number | 51206407 (also marked as 512 064 07) |
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| Compatible drill models | YH65, YH70s, YH80a, YH80rp, YH95 |
|---|
| Type | Accumulator diaphragm / membrane |
|---|
| Material | Elastomer compound engineered for hydraulic oil and nitrogen exposure |
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Details
Detailed Description
Yamamoto 2651206407 YH65 LM500 BRP130 51206407 膜片 512 064 07 膜片 英格索兰
品牌：英格索兰
零件号：51206407
描述：膜片
适用于：Yh 65、Yh 70s、Yh 80a、Yh 80rp、Yh 95
液压凿岩机 YH65 零件清单
51525962 组件, 后盖 42 50748334 盖
1 51525970 后盖 43 51206415 O型圈
2 51206068 支承, 吹管 44 51206423 螺栓
3 51206076 O型圈 51206431 组件, 液压马达
4 51206084 O型圈 45 51205508 马达, 回转
5 51176477 销, 弹簧 51206449 O型圈
6 51206092 堵塞 46 51206449 O型圈
7 51206100 堵塞 47 51176808 O型圈
8 51176493 接头 48 51206456 接头
9 51166056 接头, 软管 49 51329308 有头螺钉
10 51208478 衬套 51525988 组件, 齿轮箱
11 51208460 衬套 50 51525999 箱, 齿轮
12 51162212 密封件 51 51206498 衬套
13 50748250 密封件 52 51206084 O型圈
51206126 组件, 后盖填料函 53 51176477 销, 弹簧
14 51206134 填料函, 后盖 51206514 组件, 驱动齿轮
15 50748250 密封件 54 51206522 齿轮, 驱动
16 51206639 接头 55 50781962 轴承, 球
17 51176543 螺母, 软管 51206530 组件, 惰齿轮
18 51103778 O型圈 56 51206548 齿轮, 惰轮
51206159 组件 吹管 57 51206555 轴承, 滚针
19 51206142 吹管 58 51206597 轴, 齿轮
20 51206167 橡胶 59 51206605 O型圈
21 51206175 橡胶夹持器 51206613 组件, 盖
51206183 气缸组件 60 51206621 盖
22 51206191 气缸 61 51206415 O型圈
23 51104222 O型圈 62 50945385 螺栓
24 51206217 O型圈 51537165 组件, 驱动器
51206225 组件, 气缸衬套 63 51206662 驱动器, 夹盘
25 51206233 衬套, 气缸 64 51533107 套件, 衬套
26 51206241 密封件 阶梯 51537157 组件, 夹盘端
51206258 组件 后衬套 65 51526010 端, 夹盘
27 51206266 后衬套 气缸 66 51206704 O型圈
28 51206076 O型圈 67 51206712 衬套
29 51206282 密封件, 阶梯 68 51298636 夹盘
30 51206308 密封件, 滑块 51537173 组件, 盖
31 51206316 导阀, 阀 69 51206746 盖, 夹盘端
32 51206324 阀 70 51533115 衬套, 盖
33 51206332 活塞 71 51104248 O型圈
51206340 组件, 前衬套 51206779 组件, 螺栓
34 51206357 衬套, 前 72 50944990 螺栓
35 51206365 O型圈 73 51206787 螺母, 尼龙
36 51206373 环, 刮油 51206829 组件, 吊环螺栓
51155125 组件, 蓄能器 76 51206837 螺栓 吊环
37 51206381 主体 77 51206845 板, 挂钩
38 51206399 盖 78 51206852 螺栓
39 51206407 膜片 79 50855923 垫圈, 弹簧
40 51176741 阀 80 51525947 侧杆
41 51176758 垫圈, 密封 81 51275063 O型圈
82 51525954 螺母 用于侧杆
FAQ
FAQ
How do I know when this diaphragm needs replacing?
The most common sign is the drill losing power — lower impact energy or the hammer refusing to start. You might also see pressure fluctuations on the gauge while the drill isn't under load. Catching it early avoids damage to the accumulator housing.
Can I install this myself, or does it need a service technician?
Most crews do it on site. You depressurize the accumulator, unbolt the cover, swap the old membrane for the new one, torque it down, and recharge with nitrogen. It usually takes under an hour.
Is this exactly the same as the 512 064 07 diaphragm that came with the drill?
Yes. Yamamoto supplies these to Ingersoll Rand, so we're talking about the same mold, same compound, same spec. No re-boxing surprise.
How many diaphragms do you keep in stock?
We normally hold enough to cover single-unit replacements and small fleet orders. If you need a batch for a multi-rig operation, let us know — we can pull stock forward or arrange staggered delivery.
What if it fails early — do you back it with anything?
We warrant against material and manufacturing defects. If a membrane tears under normal operating conditions within the warranty period, we replace it. We'll also ask for photos and install details to help you rule out things like low nitrogen charge or incorrect torque.
