ST Series — Warehouse Handling
Narrow-aisle reach without a counterbalance footprint
The ST20 is a straddle-leg electric stacker rated 2,000 kg, built for narrow-aisle stacking and mezzanine feeding where a counterbalance truck’s turning circle does not fit. Straddle legs pass under the pallet rather than in front of it, so the truck reaches lift heights up to 5,300 mm without the counterweight bulk of an EP-series machine, and adjustable fork width (550–1,150 mm) covers mixed pallet sizes without a fork change.
A tiller-arm emergency reverse gives the operator an immediate stop-and-retreat control at height, and the 24 V lithium pack (80 Ah) removes lead-acid maintenance from daily operation. Every unit is 100% load-tested before shipment under our ISO 9001:2015 quality system.
Granvolt ST Series
ST20
2.0 t Electric Straddle Stacker
Rated load
2,000 kg
Power
24 V lithium, 80 Ah
Lift height
3,000 mm (max 5,300 mm)
Lift speed
0.12 m/s
Specifications
Full technical specifications
All figures from the Granvolt ST20 datasheet. Values are stated at rated conditions; confirm configurations for your duty cycle in your RFQ.
| Model | ST20 |
|---|---|
| Description | 2.0 t Electric Straddle Stacker |
| Rated load | 2,000 kg |
| Power type | 24 V lithium, 80 Ah |
| Lift height | 3,000 mm (max 5,300 mm) |
| Lift speed | 0.12 m/s |
| Type | Straddle leg stacker |
| Fork width | Adjustable 550–1,150 mm |
| Safety | Tiller-arm emergency reverse |
| Applications | Narrow-aisle stacking, mezzanine feeding |
| Certifications | CE |
Every unit is 100% load-tested before shipment under our ISO 9001:2015 quality system.
Certifications
Compliance and quality assurance
CE
Conformity with EU Machinery Directive 2006/42/EC, covering the complete ST20 machine.
ISO 9001:2015
Factory quality management system certification, covering the 68,000 m² Qingdao plant where every unit is 100% load-tested before shipment.
Applications
Where the ST20 works
Specified for narrow-aisle stacking and mezzanine feeding.
Narrow-aisle stacking
Straddle-leg design reaches racking without the counterbalance turning circle a sit-on truck needs.
Mezzanine feeding
Lift height to 5,300 mm covers mezzanine infeed points beyond standard counterbalance reach.
Mixed pallet sizes
Adjustable fork width (550–1,150 mm) handles mixed pallet footprints without swapping forks.
Configure the ST20 for your fleet
Tell us your load profile, lift height, and attachment needs. Average response within 12 hours during working hours.