JOY GLOBAL UNDERGROUND MINING LLC
USDOT 51734 · Doing business as KOMATSU
Active, interstate carrier, mid-size fleet (20 power units) — no FMCSA safety rating on record (common).
Vetting summary
At a glance
- Out-of-service rate5.3% vs 19.1% national avg
- Crashes (24 months)3 reported — involvement does not imply fault
- Linked registrations4 share this carrier's phone or address
These signals summarize the records shown below — they are a starting point for your own checks, not a judgment of the carrier.
Registration
Carrier identity
| USDOT Number | 51734 |
|---|---|
| MC Number | — |
| Legal Name | JOY GLOBAL UNDERGROUND MINING LLC |
| DBA Name | KOMATSU |
| Entity Type | CORPORATION |
| Phone | 7757484637 |
| Address | 177 THORN HILL DRIVE, Warrendale, PA, 15086 |
Status
Authority & safety
| Operating Status | Active |
|---|---|
| Operation Type | Interstate |
| Safety Rating | None on record — most carriers have not received a formal FMCSA safety rating. |
| Hazmat Flag | false |
Safety ratings: S = Satisfactory, C = Conditional, U = Unsatisfactory. A carrier with no rating has not been through a full FMCSA compliance review — this is common and not itself a red flag.
Our scoring
Safety scores
| Unsafe Driving | 81 / 100 |
|---|---|
| Hours-of-Service Compliance | 0 / 100 |
| Driver Fitness | 0 / 100 |
| Controlled Substances & Alcohol | 0 / 100 |
| Vehicle Maintenance | 65 / 100 |
Scores are 0-100 rankings computed by us from public FMCSA inspection measures; higher = worse relative to peers. Not official CSA/BASIC percentiles. How these scores are computed.
Safety events
Inspections & crashes (last 24 months)
| Inspections | 57 |
|---|---|
| Out-of-Service Rate | 5.3% vs 19.1% national average |
| Crashes | 3 total (0 fatal, 3 with injuries, 3 towaway) |
- 2025-12-01 — KS — 2 injured, towaway
- 2025-09-23 — WY — 1 injured, towaway
- 2025-05-29 — VA — 3 injured, towaway
Most frequent violation categories: 12 (4), 29 (4), 20 (3).
Crash involvement does not imply fault. FMCSA crash records list all reportable crashes involving a carrier, regardless of who caused them.
Signals
Linked registrations
4 other active carrier registrations share this carrier's phone or address in FMCSA records.
USDOT 1115 · USDOT 99935 · USDOT 393270 · USDOT 1630955
Shared contact details can have many ordinary explanations, such as a shared dispatch service, registration agent, or office address.
Equipment
Fleet & operations
| Power Units (trucks) | 20 |
|---|---|
| Drivers | 17 |
| Recent Annual Mileage | 1,240,599 |
| Last MCS-150 Filing | 28-NOV-25 |
JOY GLOBAL UNDERGROUND MINING LLC operates 20 power units — a larger fleet than 97% of carriers registered in PA.
Nearby
Other carriers in Warrendale, PA
- WESCO DISTRIBUTION INC — USDOT 564464, 258 power units
- TEAM TRANSPORT INC — USDOT 205068, 110 power units
- BURNS INDUSTRIAL EQUIPMENT INC — USDOT 501115, 110 power units
- DANDY SERVICE CORPORATION — USDOT 202393, 70 power units
- PARAGON WHOLESALE FOODS CORP — USDOT 435939, 35 power units
Browse all carriers in Warrendale, PA or all PA carriers.