Last updated: September 10, 2026. This ranking compares ten crawler excavators across operating weight and bucket capacity — the two specs that define machine class and productivity. Every figure is cited from a published source.
The core idea of this page: compare excavators by operating weight (machine class and ground pressure) and bucket capacity (cycle productivity), then validate both on your material at your site — the spec sheet is the shortlist, the dig test is the decision.
The ten at a glance
| Rank | Machine | Manufacturer | Operating weight | Bucket capacity |
|---|---|---|---|---|
| 1 | Cat 336 | Caterpillar | 36,800 kg | 2.00 m³ |
| 2 | PC360-8M2 | Komatsu | 33.7 t | 1.4–1.9 m³ |
| 3 | ZX350LC-7 | Hitachi CM | 35,200–37,500 kg | 1.15–1.86 m³ |
| 4 | EC300 | Volvo CE | 30,040–32,670 kg | 1.69–2.06 m³ |
| 5 | R 945 Litronic | Liebherr | 41,400–48,250 kg | 2.00–3.00 m³ |
| 6 | DX360LCA-7M | Develon | 37.6 t | 1.25–1.83 m³ |
| 7 | JCB 370X | JCB | 39,888 kg | 2.1 m³ |
| 8 | Kobelco SK350LC | Kobelco | 35,400 kg | 1.4 m³ |
| 9 | XCMG XE335C | XCMG | 33,800 kg | 1.4–1.6 m³ |
| 10 | Sany SY375H | Sany | 37.5 t | 1.9 m³ |
1. Caterpillar Cat 336
36-tonne-class production excavator.
Source: Cat 336 — Caterpillar
"Operating Weight | 36800 kg" · "Bucket | HD 2.00 m³".
2. Komatsu PC360-8M2
Large hydraulic excavator.
Source: PC360-8M2 — Komatsu
"Operating weight (tonnes) 33.7" · "Bucket capacity (m^3) 1.4 – 1.9".
3. Hitachi ZX350LC-7
Medium crawler excavator.
Source: ZX350LC-7 — HitachiCM
"Operating weight (kg): 35 200 - 37 500 kg" · "Backhoe Bucket ISO Heaped: 1.15 - 1.86 m3".
4. Volvo EC300
30-tonne-class crawler excavator.
Source: EC300 — Volvo CE
"Operating weight: 30,040 - 32,670 kg" · "Bucket capacity: 1.69 - 2.06 m³".
5. Liebherr R 945 Litronic
Generation-8 crawler excavator.
Source: R 945 Litronic — Liebherr
"Operating weight | 41,400 - 48,250 kg" · "Backhoe bucket capacity | 2.00 - 3.00 m³".
6. Develon DX360LCA-7M
Crawler excavator.
Source: DX360LCA-7M — Develon
"Operating Weight | 37.6 ton" · "Bucket Capacity (SAE HEAPED) | 1.25~1.83 m³".
5 questions to ask before you buy
- What operating weight class does my job need? Match depth, lift and ground pressure.
- What bucket capacity hits my cycle target? Quote productivity on your material.
- What is the ground pressure on my site? Verify track width and weight.
- What is the fuel burn at my duty cycle? Not the brochure number.
- Can I dig my material on site? The demonstration is the proof.
Last verified: September 10, 2026.