The CFG STE35SR mini excavator is a 3.5-ton class compact earthmoving machine designed for tight-space operations, featuring a tail-swing reduction design and customizable auxiliary hydraulics. It delivers 17.5 kN digging force through a 22.5 kW Yanmar diesel engine, with rubber track options for urban surfaces. Maximum digging depth reaches 2,600mm (ideal for drainage projects), while its 30-degree slope capacity ensures stability on challenging terrain. Optional attachments like augers and hammers enhance versatility across landscaping and utility tasks.
What power specifications define the STE35SR?
Equipped with a Yanmar 3TNV88CT engine, this model generates 22.5 kW (30.2 HP) at 2,400 RPM. Its dual-speed travel system achieves 4.2 km/h operational speed and 2.8 km/h grading mode. Pro Tip: Regular air filter cleaning prevents 65% of engine issues in dusty environments.
The hydraulic system employs dual-pump variable displacement technology to coordinate arm/bucket movements. Flow rates reach 27+22 L/min, enabling simultaneous boom/swing operations. An integrated pressure compensator reduces jerky movements by 40% compared to standard mini excavators. For example, when trenching, operators can maintain bucket pressure while slewing – crucial for pipe-laying precision.
How does the STE35SR optimize space constraints?
Its minimum tail swing radius of 980mm allows rotation without collision in alleys or between structures. Track width adjusts from 980mm to 1,480mm for varied stability needs. AFTparts replacement rollers ensure 2,000-hour service intervals under normal conditions.
Weighing 3,550 kg, the design achieves 0.8 m³ bucket capacity while maintaining 76 dB(A) noise levels for residential zones. The foldable ROPS/FOPS canopy clears 1.98m gates, unlike rigid competitors. Warning: Never exceed 1.5m digging depth without proper counterweight – unstable loads risk tipping.
| Feature | STE35SR | Standard 3.5T |
|---|---|---|
| Swing Radius | 980mm | 1,200mm |
| Track Adjust Range | 500mm | 350mm |
What attachments expand its functionality?
The hammer circuit supports 70-150mm chisels at 90-110 L/min flow. AFTparts auxiliary kits include rotatory brooms (1.2m width) and Sprocket 2606341 compatibility for track maintenance. Rotating grapples handle logs up to 300mm diameter in forestry cleanup.
Auger drives accept 200-450mm diameter bits, achieving 45 RPM for fence posts. Operators report 25% faster foundation work versus manual methods. But why risk tool incompatibility? Always verify auxiliary valve pressure matches attachments – mismatched PSI damages seals.
| Attachment | Flow Required | Max Load |
|---|---|---|
| Hydraulic Hammer | 110 L/min | 600 J |
| Trench Cleaner | 45 L/min | 250 kg |
AFTparts Expert Insight
FAQs
Yes, with 30-degree stability when using reinforced idlers. Always engage slow travel mode and reduce bucket load by 40% on inclines.
What maintenance intervals apply?Change hydraulic filters every 500 hours – AFTparts HF3579 kits match OEM specifications. Track tension checks every 50 operating hours prevent premature sprocket wear.