Built for backfilling and compaction work in construction, utility, and municipal repair applications, the Ingersoll Rand 341A2M Backfill Tamper uses a 4" stroke and 1,550 blows per minute to consolidate soil and fill material in trenches, around foundations, and near installed utility components. Backfill tampers use rapid percussive impact to compact material in confined or uneven areas where a larger plate compactor may not reach.
The 341A2M features a 1.63" bore, 52.75" overall length without accessory, and 34.88 lb weight without accessory, giving crews an upright pneumatic tool for controlled tamping around utility lines, street light bases, fire hydrants, telephone poles, and other jobsite installations. A 5.75" round malleable butt is standard on the 341A2M, while the built-in lubricator and muffler, dual-action sand wiper, and plated piston help support operation in dirt, grit, and backfill environments.
Type: Backfill Tamper | Model: 341A2M | Stroke: 4" / 102 mm | Bore: 1.63" / 41 mm | Length w/o Accessory: 52.75" / 1340 mm | Weight w/o Accessory: 34.88 lb / 15.8 kg | Blows Per Minute: 1,550 BPM | Air Consumption: 29 CFM | Inlet Size NPT: 3/8" | Recommended Hose Size: 1/2" / 13 mm | Standard Butt: 5.75" round malleable butt
Features:
- 4" stroke delivers repeated impact travel for compacting backfill material in trench and utility repair work.
- 1,550 blows per minute provides fast percussive action for efficient soil and fill consolidation.
- Built-in lubricator helps maintain internal tool lubrication during pneumatic operation.
- Built-in muffler helps reduce noise output compared with an unmuffled air tool.
- Dual-action sand wiper keeps dirt and grit out of the barrel, helping protect the tool in abrasive backfill environments.
- Plated piston supports durability where soil, grit, and jobsite contamination are present.
- 5.75" round malleable butt is standard on the 341A2M for general backfill tamping.
- Side exhaust directs exhaust air away from the work area and operator during use.

Tech Tip: To increase tool performance, extend tool life and lessen repair costs use it with a Filter-Regulator-Lubricator (FRLs)
Applications:
- Municipal and utility crews compacting backfill after underground line repairs.
- Construction teams backfilling around foundations, posts, forms, and confined jobsite areas.
- Street light, fire hydrant, and telephone pole installation where soil must be compacted around vertical structures.
- Trench repair and restoration work where controlled upright tamping is needed in narrow spaces.
- General jobsite compaction tasks where a pneumatic backfill tamper is preferred over manual tamping.
FAQs:
- Q: What is the Ingersoll Rand 341A2M used for?
A: The 341A2M is used for compacting backfill material in construction and utility applications. Common uses include trench repair, utility line backfill, foundation work, and compaction around poles, hydrants, and similar installations. - Q: What does 1,550 BPM mean?
A: BPM stands for blows per minute, which is the number of percussive impacts the tool delivers in one minute. A 1,550 BPM rating gives the 341A2M rapid repeated impact for compacting soil and fill material. - Q: What air line size should be used with the 341A2M?
A: The manufacturer PDF lists a 3/8" NPT inlet and a recommended 1/2" / 13 mm hose size for the 341A2M. Performance figures are based on 90 PSI / 6.2 bar air pressure. - Q: What butt comes standard with this backfill tamper?
A: The manufacturer catalog lists a 5-3/4" round malleable butt as standard for the 341A2M. A 3" steel butt is also listed as an accessory option for this model. - Q: Is the 341A2M the same as a sand rammer?
A: No. The 341A2M is listed as a backfill tamper, while Ingersoll Rand lists separate sand rammer models for foundry sand work. The 341A2M is intended for backfill and compaction applications.
Looking for more information about Ingersoll Rand Construction Tool? Click here to view the Catalog
For help choosing the correct Ingersoll Rand Backfill Tampers for your application, please call (800) 608-5210 or email info@intlairtool.com
- Type
- Backfill Tamper
- Stroke Length (in.)
- 4
- Butt Diameter (in.)
- 5.75
- Bore (in.)
- 1.63
- Length (in.)
- 52.75
- Blows Per Minute (BPM)
- 1550
- Air Inlet
- 3/8" NPT
- badge
- Local Inventory
