Last updated: October 20, 2026. Drilling and tunneling equipment spans surface crawler drills, underground jumbos, piling rigs and TBMs — very different machines that share a common selection logic: ground conditions, hole diameter and advance rate. This comparison profiles ten machines by type and duty. It is a desk-research comparison of published specifications, not a hands-on test. See the Drilling & Tunneling Buying Guide.
The core idea of this page: choose the machine type first — a surface crawler drill for quarry blast holes, an underground jumbo for development drilling, a piling rig for foundations, a TBM for long mechanised tunnels — then compare machines within that type. The ground and the hole decide the machine.
Comparison methodology
This is an independent editorial comparison of published specifications. No manufacturer pays for placement. We compare machines within a duty band and score on four product dimensions:
- Specification competitiveness — hole capacity, depth, power and automation against the duty band.
- Feature coverage — whether the key features for the type (dust collection, rod handling, guidance) are included.
- Certification and compliance — emissions tier, guarding and safety certification.
- Data verifiability — whether specifications are published; unpublished figures marked "Not published".
| Rank | Model | Spec | Features | Cert | Verif. |
|---|---|---|---|---|---|
| 1 | Epiroc SmartROC D65 | ★★★★★ | ★★★★★ | ★★★★ | ★★★★ |
| 2 | Herrenknecht Mixshield TBM | ★★★★★ | ★★★★ | ★★★★ | ★★★ |
| 3 | Robbins Main Beam TBM | ★★★★ | ★★★★ | ★★★★ | ★★★ |
| 4 | Boart Longyear LF350 | ★★★★ | ★★★★ | ★★★★ | ★★★★ |
| 5 | Furukawa HCR1200-ED | ★★★ | ★★★★ | ★★★★ | ★★★★ |
| 6 | Fletcher J-352 | ★★★ | ★★★ | ★★★ | ★★★ |
The ten at a glance
| Rank | Model | Type |
|---|---|---|
| 1 | Epiroc SmartROC D65 | Surface drill rig |
| 2 | Herrenknecht Mixshield TBM | Slurry TBM |
| 3 | Robbins Main Beam TBM | Hard-rock TBM |
| 4 | Boart Longyear LF350 | Surface coring drill |
| 5 | Furukawa HCR1200-ED | Crawler drill |
| 6 | Fletcher J-352 | Underground jumbo |
| 7 | Sandvik DX800 | Surface drill rig |
| 8 | Komatsu Joy jumbo | Underground jumbo |
| 9 | Develon (Doosan) SD400 | Surface drill rig |
| 10 | Stenuick SL 30 | Foundation drill rig |
1. Epiroc SmartROC D65
Why it ranks here
Surface top-hammer drill rig for quarry and mining blast holes; automation is the differentiator (auto-positioning and RCS control).
2. Herrenknecht Mixshield TBM
Why it ranks here
Slurry-pressure TBM for soft, water-bearing ground; the reference for urban tunnelling under groundwater.
3. Robbins Main Beam TBM
Why it ranks here
Hard-rock open-gripper TBM; the workhorse for long rock tunnels where ground is stable.
4. Boart Longyear LF350
Why it ranks here
Surface coring rig for mineral exploration; chosen for core recovery and depth, not production output.
5. Furukawa HCR1200-ED
Why it ranks here
Hydraulic crawler drill for quarry blast holes; a Japanese reliability benchmark.
6. Fletcher J-352
Why it ranks here
Underground drill jumbo for development drilling; the North American underground-mining standard.
What these machines cost
Pricing is configuration-driven and rarely published; treat these as editorial estimates, ex-works:
| Machine | Typical band |
|---|---|
| Surface crawler drill | US$300k–900k |
| Underground jumbo | US$800k–2.5m |
| TBM | US$10m–60m+ |
Four pitfalls to avoid
- Comparing a drill rig and a TBM as substitutes. They solve different problems — drill-and-blast vs mechanised tunnelling.
- Ignoring ground conditions. A TBM in the wrong ground stalls; ground investigation first.
- Mixing duty bands. A quarry crawler drill and a mining jumbo are different machines.
- Skipping a trial on your rock. Penetration rate is rock-specific.
5 questions to ask before you buy
- What penetration rate can the machine hold in my ground? Confirm on a witnessed trial.
- What is the consumable cost per drilled metre? Bits, rods and cutters dominate cost.
- What are the transport dimensions and weight? Confirm site access.
- Which safety and automation features are included? Guarding, dust and remote control.
- What warranty covers the carrier and the drill system? Separate consumables from structural warranty.
Part of the Drilling & Tunneling equipment taxonomy.
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Last verified: October 20, 2026.
