Weight Class30.0 - 55.0T
Heavy Excavator
Systems
Engineered for major earthworks and mining support. When productivity is measured in tons per hour, Sieruta Heavy Attachments deliver the reliability you need.
Primary Platforms
Optimized for 30-55T production machines
CAT 336 / 349 / 352
Komatsu PC360 / PC490
Volvo EC380 / EC480
Hitachi ZX350 / ZX490
Liebherr R934 / R945
Doosan DX380 / DX530
Kobelco SK350 / SK500
Sany SY500
Heavy Duty Range
Built to Last
At this weight class, standard steel doesn't cut it. We use wear plates up to 40mm thick in high-abrasion zones. Our designs prioritize material flow to reduce machine cycle times.
- Reinforced Ear Plates
- Cast Heel Shrouds
- CAT J-Series Teeth
- Optional Hard Facing
Connection Standards
S90 (30-40 Ton)
Pin: 90mm | Width: 620mm | C-C: 750mm
S100 (40-55 Ton)
Pin: 100mm | Width: 750mm | C-C: 870mm
S120 (50-70 Ton)
Pin: 120mm | Width: 925mm | C-C: 1000mm
Featured Heavy Attachments
Built for high-volume earthmoving
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HARDOX 500
2.5m³ Rock Bucket
From 8.500 €
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OILQUICK
S90 Fully Automatic Coupler
POA
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SHARK TOOTH
Heavy Duty Ripper
From 4.500 €
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PIPELINE
V-Ditch Bucket
From 5.200 €
No Downtime Guarantee
We understand that a parked 50-ton excavator costs thousands per day. We stock critical spare parts and wear items for same-day shipping.