
RAMMER 3288 Hydraulic Breaker Tool is Engineered for the Toughest Demands at MERIT.
When your project involves heavy-duty demolition, trenching, or quarrying, you need a tool that doesn’t just work—it dominates. The Rammer BR3288 Pyramid Tool is designed for maximum penetration and extreme durability in the most challenging environments.
Technical Specifications
Precision-engineered to meet the rigorous standards of the Rammer series:
| Feature | Specification |
| Model | Rammer 3288 / BR3288 |
| Tool Type | Pyramid (Optimal for hard rock & reinforced concrete) |
| Diameter | 142 mm |
| Length | 1200 mm |
| Weight | 153 kg |
| Material | High-grade, Heat-treated Alloy Steel |
Why Choose the Rammer 3288 Pyramid Tool?
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Superior Material Strength: Crafted from specialized heat-treated alloy steel to minimize wear and prevent premature breakage.
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Optimized Impact: The 142mm diameter ensures stable energy transfer, delivering 100% of the hammer’s power directly into the material.
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Extended Service Life: Designed to withstand high thermal stress and abrasive conditions, reducing your downtime and maintenance costs.
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Versatility: Perfect for secondary breaking and heavy demolition where precision and power must meet.
1. Housing Unit Assemblies
Heavy Duty (HD)
Housing: 168089
Pad: 155438
Buffer (Standard): 154317
Buffer (Heavy duty): 168203
Plug: 157947
Hex. screw (M24x110-12.9): 90589
Washer: 90511
Lock nut (M24-12): 90507
Shield plate: 163556
Plug: 158147
Plug: 400491
Plug: 953291
Wear plate: 163355
Lifting eye (M30): 90705
Hex. screw (M30x40-8.8): 900026
Seal: 153013
Wear parts: 168211
Heavy Duty Hard Rock (HDHR) & Primary Breaking
Housing (HDHR/Primary): 168085
Wear plate: 162598
Wear plate: 162597
Wear parts: 160399
2. Internal Percussion Unit Components
Accumulator
Accumulator (complete): 155339
Accumulator bottom: 173741
Accumulator cover: 155342
Membrane: 173532
Accumulator screw: 40416
Filling plug: 40368
Shield plug: 154015
O-ring (D23): 910006
Parallel pin: 90304
Usit-ring: 90056
Accumulator screw: 41335
Seal (D124): 41357
O-ring (D194): 910002
Main Valve
Main valve bushing: 103802
Main spool: 162453
Spool (D23): 101853
Spool (D16): 40112
Cover: 101472
Cover: 101830
Seal (D110): 902668
O-ring (D105): 90005
Lock washer: 90597
Hex. screw: 90517
Ramvalve
Ramvalve (complete): 172210
Cover: 172149
Valve housing: 172211
Spool: 171031
Spring: 954342
O-ring (D34/D46/D44): 90017 / 90031 / 90007
Shim plate: 954349
Seal (D34): 954341
Pressure Control Valve
Pressure control valve (complete): 162450
Valve housing: 162451
Spool: 162452
Guide: 400688
O-ring (D60): 90083
Spring: 90104
Seal (D50/D55): 41375 / 41374
O-ring (D21): 910018
Plug: 112512
3. Body and Front Head Parts
Body Parts
Valve body: 162448
Breather: 400662
Flange plug (R3/4): 90401
Cylinder: 162442
Piston: 162445
Seal carrier: 162446
Wiper (D119): 901160
Seal (D120/D118): 955144 / 150244
Front Head
Front head: 173679
Thrust ring: 155467
Upper tool bushing: 101414
Tool retaining pin: 153235
Ring: 153236
Wedge: 40110
Retaining pin (D30): 173680
Rubber ring: 173685
Lower tool bushing: 155206
4. Working Tools
Chisel (881): 881
Moil point (883): 883
Blunt (884): 884
Pyramid (883K3): 883K3
Limestone Chisel (881F3): 881F3
Hard Rock Chisel (881A2): 881A2
Super Blunt (884T2): 884T2
5. Service Kits
Seal set: 163428
Service kit (Basic): K13288
Service kit 2A (HD): K2A3288
Service kit 2B (HDHR): K2B3288
Service kit 2D (Primary Breaking): K2D3288
Rammer S86 Parts List
| No | Part Number | Description |
|---|---|---|
| 1 | 40542 | Pad |
| 2 | 42075 | Buffer |
| 3 | 30274 | Buffer |
| 4 | 40531 | Wear Plate |
| 5 | 30269 | Membrane |
| 6 | 30261 | Accumulator Screw |
| 7 | 20282 | Side Rod |
| 8 | 30480 | Nut |
| 9 | 40585 | Locking Ring |
| 10 | 40586 | Rubber Ring |
| 11 | 10225 | Piston |
| 12 | 30254 | Thrust Ring |
| 13 | 40502 | Upper Tool Bushing |
| 14 | 21155 | Lower Tool Bushing |
| 15 | 31549 | Bushing |
| 16 | 41336 | Pin |
| 17 | 40503 | Pin |
| 18 | 42431 | Seal Set |
| 19 | 10217 | Front Head |
Rammer S84 Parts List
| No | Part Number | Description |
|---|---|---|
| 1 | 30261S0084 | Accumulator Bolt |
| 2 | 41479 | Tool Retaining Pin |
| 3 | 41241 | Seal Set Complete |
| 4 | 10455 | Piston |
| 5 | 30608 | Tie Rod |
| 6 | 30581 | Tie Rod Nut |
| 7 | 30269A | Membrane |
| 8 | 20943 | Lower Tool Bushing |
| 9 | 30558 | Upper Tool Bushing |
| 10 | 20623 | Thrust Ring |
Rammer S83 Parts List
| No | Part Number | Description |
|---|---|---|
| 1 | 400361 | Retaining Pin |
| 2 | 400360 | Retaining Pin |
| 3 | 400358 | Tool Retaining Pin |
| 4 | 42415 | Seal Set Complete |
| 5 | 10606 | Piston |
| 6 | 200177 | Tie Rod |
| 7 | 300291 | Tie Rod Nut |
| 8 | 41090 | Lock Plate |
| 9 | 30766 | Membrane |
| 10 | 102157 | Lower Tool Bushing |
| 11 | 300292 | Upper Tool Bushing |
| 12 | 20838 | Thrust Ring |
| 13 | 100336 | Front Head |
| 14 | 300978 | Pad |
| 15 | 300979 | Buffer |
















