Viktklass
Storleksklass för en grävmaskin efter dess driftvikt. Den används för det första valet av ett redskap. Om gränssnittet passar (bultar, armens bredd, snabbfäste) kontrolleras separat.
Weight class categorizes excavators by their operating weight (including tracks, counterweight, and fuel). It is a first filter for attachment size, not a fitment check: the interface (pins, stick width, coupler) is verified separately for each machine.
Standard weight classes:
- Mini (1–6 t): Compact excavators for tight spaces
- Midi (6–10 t): Mid-size machines
- Large (10–30 t): General construction machines
- Heavy (30 t+): Quarry, mining, heavy demolition
Why weight class matters:
- Determines hydraulic flow available
- Sets maximum attachment weight
- Affects working envelope and reach
Weight class does not tell you the pin spacing or pin diameter. Those vary by machine and are checked separately.
Matching rules:
- Attachment weight typically 15-25% of carrier weight
- Hydraulic requirements must match carrier capability
- Pin configuration must match or use adapter
Sieruta manufactures attachments for mini, midi and large excavators, and our engineers check the fit against the carrier before production.