Rock crushing machinery, portable, manufacturing · South Carolina

Master Machine Works, Inc.

Spartanburg, SC · ~33 workers · 4 years of OSHA Injury Tracking Application data.

A
Excellent Safety Record
0.9
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

Master Machine Works, Inc. runs at 27% of its industry's injury rate - far safer than the typical Rock crushing machinery, portable, manufacturing workplace, earning a grade A.

Master Machine Works, Inc.: 0.9 TCR = 27% of Rock crushing machinery, portable, manufacturing BLS 3.3 · 4y Form 300A (see methodology below)

Master Machine Works, Inc. safety composite

Master Machine Works, Inc. scores strongest on total case rate (tcr) (safer than 94% of same-industry peers) and weakest on fatalities (safer than 51%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).

B

80/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
A 0.88 per 100 workers

Safer than 94% of industry peers

DART rate
B 0 per 100 workers

Safer than 86% of industry peers

Fatalities
D 0

Safer than 51% of industry peers

Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).

TCR Δ

−3.5

2019→2023

Master Machine Works, Inc. injury rate improved

Master Machine Works, Inc.'s TCR fell 3.5 from 3.5 in 2019 to 0.0 in 2023. Peak filing year was 2019 at 3.5 TCR. In 2023, DART was 0× this establishment's average TCR (severity share of cases).

2019=3.5 · 2020=0.0 · 2022=0.0 · 2023=0.0

OSHA ITA Form 300A scorecard

Establishment book 333120 · Spartanburg, SC AT/BELOW-IND · SMALL

Grade A · TCR 0.9 · 27% of ind

  • DART 0.0 DART
  • RANK #2/7
  • PHOTO Screen Machine Indus…
  • BOOK 4y book
  • INJ 1 inj
  • SIZE ~33 FTE

Nearest TCR peer: Screen Machine Industries LLC (0.0 TCR gap)

Read with this employer → · Industry book → · South Carolina employers → · Look up another →

Master Machine Works, Inc. in the TCR neighbourhood

Average Total Case Rate among this establishment and nearest same-industry peers

TCR

What this shows Master Machine Works, Inc. averages 0.9 TCR (27% of the Rock crushing machinery, portable, manufacturing BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-08-25

Master Machine Works, Inc. TCR series: 2019=3.5 · 2020=0 · 2022=0 · 2023=0 · BLS 3.3

Where Master Machine Works, Inc. falls in its industry

400 Rock crushing machinery, porta establishments

Safer than 94% of graded establishments in this industry, whose median TCR is 4.0.

More dangerous than peersSafer than peers

Narrower to South Carolina alone (the establishments it most directly competes with for workers and contracts): ranked #2 safest of 7 Rock crushing machinery, porta employers in South Carolina.

Master Machine Works, Inc. (33 employees, TCR 0.9) among 29 same-industry peers, split at the industry median of 87 employees and a TCR of 4.0 2×2 strategic matrix plotting 30 entities by Average employees (X) and Total Case Rate (Y), with a crosshair dividing the plot into four quadrants. Larger & higher-riskSmaller & higher-riskLarger & saferSmaller & safer than peers 0100200300400500 05101520 Average employees Total Case Rate Master Machine Works, Inc.
Master Machine Works, Inc. (33 employees, TCR 0.9) among 29 same-industry peers, split at the industry median of 87 employees and a TCR of 4.0

Master Machine Works, Inc. has fewer employees than the Rock crushing machinery, portable, manuf median and a lower injury rate than the industry's median TCR of 4.0. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.

Year-by-Year Safety Data

Year TCR DART Injuries Illnesses Fatalities
2023 0.0 0.0 0 0 0
2022 0.0 0.0 0 0 0
2020 0.0 0.0 0 0 0
2019 3.5 3.5 1 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

333120 · SC · Spartanburg

400 Rock crushing machinery, portable, manufacturing employers nationwide with a credible TCR · 7,610 rated employers in South Carolina with headcount on file · 294 employers in Spartanburg, SC · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel Establishment Metric
NAICS-TCR Screen Machine Industries LLC 0.9 TCR
NAICS-TCR ESCO Covington 0.9 TCR
NAICS-TCR CRC Evans Onshore West 0.9 TCR
NAICS-TCR Komatsu America Corp 0.9 TCR
STATE-SIZE BEC- Johns Island Facility 33 FTE
STATE-SIZE MYRTLE BEACH DISTRICT OFFICE 33 FTE
STATE-SIZE Anderson Resource Center PNG 33 FTE
STATE-SIZE Hogan Construction - Greenville 33 FTE
CITY-NEAR SPARTANBURG FOOD 8,650 FTE
CITY-NEAR Spartanburg Medical Center 5,386 FTE
CITY-NEAR Spartanburg County 1,633 FTE
CITY-NEAR Spartanburg County Government 1,561 FTE
NAT-TCR Fluid System Components Inc 0.9 TCR
NAT-TCR Courtyard Hamilton 0.9 TCR
NAT-TCR Vane Line Bunkering, LLC - Baltimore 0.9 TCR
NAT-TCR Crossroads General Store 0.9 TCR
NAT-SIZE Documotion Research Inc 33 FTE
NAT-SIZE Hanson Trucking Inc 33 FTE
NAT-SIZE Valley Dairy Restaurant #16 33 FTE
NAT-SIZE Valley Dairy Restaurant #14 33 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2023, 2022, 2020, 2019. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.