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Hy-Ram® Hammers |
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Allied has combined performance, efficiency and reliability in their all-new boom-mounted Hy-Ram impact hammer to offer several design advantages over other hammer manufacturers. The large, medium, small and mini-size Hy-Ram models are available in 12 different models ranging from working weights of 265 to 8,375 pounds and tool diameters of 1.77 to 6.88 inches.
- Simple, proven design
With continuous improvements over the years, the Allied Hy-Ram still uses the same simple, proven design that first gained industry-wide acceptance for the hydraulic hammer concept.
- Oil and gas operation
One of the many features that contribute to the efficiency of the Allied Hy-Ram is the oil and gas operation. The Allied design of gas-assist using low pressure nitrogen improves the efficiency by reducing demand on the carrier's hydraulic system. There is no dependency on hydraulic accumulators. The accumulators are merely used to eliminate hydraulic "spikes". And, pressurized oil is always present at the bottom of the piston which prevents internal cavitation.
- Long stroke design
Another feature that contributes to the reliability of the Allied Hy-Ram is the long-stroke design which minimizes recoil, reduces vibration and eliminates mechanical springs.
- Auto-Stop
The Allied medium and large Hy-Rams also have an automatic Auto-Stop feature that prevents blank-firing once the demolition tool has penetrated through the material being broken and down-pressure is no longer applied.
- Durable housing design
The Allied Hy-Rams feature a durable housing design that suspends the internal working body inside a full-box enclosure to protect the hammer, reduce noise and minimize vibration and wear to the carrier. The durable housing design is enclosed at the bottom and incorporates a heavy-duty Hardox rock claw.
- AutoLube
Hy-Rams can also have an optional AutoLube mounted on the hammer housing which is an automatic lubrication system that dispenses lubricant by the hammer’s vibration. The AutoLube uses a high-grade chisel paste in handy replaceable cartridges.
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Installation Kits
The Hy-Ram, which operates off of the carrier's hydraulic system, requires an installation kit in order to be mounted on the backhoe/loader, excavator or similar carrier. Allied offers over 2,500 installation kits to fit virtually every make and model carrier.
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Model |
HR25 |
HR50 |
HR75 |
HR100 |
HR150 |
HR200 |
| Impact Energy Class |
ft.-lbs. |
250 |
500 |
750 |
1,000 |
1,500 |
2,000 |
| Recommended Excavator Weight |
1,000 lbs. |
4-8 |
6-10 |
7-15 |
15-30 |
15-30 |
20-40 |
| Recommended Backhoe Weight |
1,000 lbs. |
na |
na |
9-17 |
12-25 |
14-25 |
16-25 |
| Recommended Skid Steer Weight |
1,000 lbs. |
3-6 |
4-6 |
5-8 |
8+ |
na |
na |
| Hydraulic Flow Required |
gpm |
4-8 |
7-13 |
8-16 |
11-21 |
13-26 |
20-32 |
| Working Weight (Excavator Configuration) |
lbs. |
265 |
386 |
574 |
728 |
1,200 |
1,765 |
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Model |
HR300 |
HR400 |
HR500 |
HR750 |
HR1000 |
HR1200 |
| Impact Energy Class |
ft.-lbs. |
3,000 |
4,000 |
5,000 |
7,500 |
10,000 |
12,000 |
| Recommended Excavator Weight |
1000 lbs. |
31-42 |
40-62 |
44-76 |
72-100 |
90-133 |
110-190 |
| Hydraulic Flow Required |
gpm |
26-40 |
26-41 |
37-50 |
53-69 |
58-74 |
63-85 |
| Working Weight (Excavator Configuration) |
lbs. |
2,535 |
3,200 |
3,970 |
5,950 |
7,275 |
8,375 | |
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