An electric pallet truck (EPT) is a walk-behind or stand-on electric-powered pallet jack rated typically from 1,500 kg up to 3,000 kg with load center 600 mm, e.g. Spirit SEP-20 (2,000 kg) and SEP-30 (3,000 kg) at 600 mm load center [S4]. Pre-installation decisions — floor class, charger circuit, fork geometry, ambient temperature envelope — determine whether the truck can deliver its nameplate throughput on day one.
Typical unit geometry for the 2,000/3,000 kg class runs as follows: lifting height 125-250 mm, lowered fork height 85 mm, fork size 1150×160 mm or 1220×160 mm, loan fork width 570 mm or 680 mm, minimum turning radius 1,620-1,900 mm, wheelbase 1,350-1,500 mm [S4]. Weigher-equipped EPTs add 4 load-cell forks plus an Mettler-Toledo IND212 head (IP54) with ±0.5 kg precision and a -5/+30 °C operating window [S1]. electric pallet truck variants cover 24 V light-duty and 48 V heavier-duty architectures from the same OEM family [S1].
Definition, Scope, and Where the EPT Stops Being a Pallet Truck
An EPT is a self-propelled low-lift pallet handling machine with electric traction, electric lift, and a tiller arm; it is <em>not</em> a stacker (no lift mast above ~250 mm) and <em>not</em> a forklift (no self-supporting wheeled chassis with a vertical mast). Class boundary: max fork-lift height 250 mm in the Spirit SEP series [S4] vs. scissor-lift pallet trucks that can raise to 800 mm but lose speed and stability above 500 mm. For pallet racking interfaces the standard EURO pallet 1,200×800 mm dictates the loan fork span (570 or 680 mm external) and fork length 1,150 mm nominal [S4].
Scope creep to refuse: do not use an EPT to push a load sideways, do not exceed the rated load at the declared 600 mm load center, and do not operate on gradients steeper than the OEM nameplate (typical pedestrian EPTs are limited to 5-8% loaded / 10-15% unloaded). For pallet racking interfaces, pallet rack bay widths must clear the truck turning radius + 200 mm safety margin — a 1,900 mm turning-radius SEP-30 needs ≥2,100 mm aisle [S4].
Selection Criteria: Match the Truck to the Load, the Floor, and the Duty Cycle
Selection starts with three concrete numbers: peak load (kg), peak daily lift cycles, and the worst-case aisle width. The Spirit SEP-30 (3,000 kg, 600 mm LC, 1,900 mm turning radius) suits heavier grocery / beverage pallets; the SEP-20 (2,000 kg, 1,620 mm radius) suits narrow-aisle last-mile distribution [S4]. Mobile-weighing EPTs (Manuvit, 2,000 kg class) add 4-sensor weighing at ±0.5 kg precision, IP54 indicator, and a built-in charger with 110/200 VAC supply [S1].
For China-built volume supply, Noblelift lists a 1.5-ton walkie EPT, an EP22 series, a stand-pad full-electric model, and mould-transport / conveyor EPT variants, confirming that the 1.5 t / 2 t / 2.2 t classes are the volume sweet spot in 2025-2026 [S2]. The decision matrix:
Selection comparison (criteria-based):
1) Rated load & duty: 1,500 kg for light e-commerce pick; 2,000 kg for general warehouse (most common, e.g. Manuvit weighing EPT [S1]); 2,200 kg for slightly heavier FMCG; 3,000 kg for beverage / bagged goods (Spirit SEP-30 [S4]).
2) Lift type: fixed low-lift (85→250 mm) for floor-to-floor; scissor (up to 800 mm) for ergonomic order picking at the cost of 30-40% lower travel speed. Manual jack baseline: zero electrical cost, ~25 cycles/operator-hour, vs. 60-80 cycles/operator-hour for a 2 t EPT.
3) Drive voltage: 24 V for ≤1.6 t walkie (smaller battery, lighter); 48 V for ≥2 t and any stand-on / rider-pallet configuration (S1 lists Manuvit 24 V and 48 V in parallel as separate SKUs [S1]).
Site Preparation: Floor Class, Aisle Geometry, and the Charging Circuit
Concrete floor must be a minimum C25/30 (≈25 MPa compressive strength) for pedestrian EPT traffic, flat to ≤3 mm/m over the travel path, and free of cracks wider than 2 mm. Joints must be flush (±2 mm) and sealed against moisture ingress. Approach clearance at the loading dock requires 1.5× the truck length on the lead-in side (≈2.0-2.3 m for the SEP-20/30) and 600 mm clearance on the operator side for tiller articulation [S4].
Charging circuit sizing: the OEM on-board charger typically draws 8-15 A from a single-phase 110/200 VAC outlet [S1]. Specify a dedicated 16 A circuit with RCD (30 mA) and route the cable away from the travel path to prevent crushing. Ambient: charge area ventilation must cope with hydrogen off-gassing during equalisation charges; for the -5/+30 °C windowed Manuvit indicator [S1], charger location should not drop below 0 °C (Li-ion) or below 10 °C (lead-acid for capacity reasons).
Mechanical Installation: Fork Entry, Lift Cylinder, and Wheel-Base Alignment
Fork entry under a standard EURO pallet (1,200×800 mm, 150 mm entry height) requires the lowered fork height H3 = 85 mm to be ≤ pallet bottom clearance (typically 100 mm) — both SEP-20 and SEP-30 meet this with margin [S4]. Lifting cylinder bleed-down test: park the truck, raise to full lift H4 (250 mm SEP-20 / 125 mm SEP-30 [S4]) and hold 5 minutes; bleed-down >5 mm/5 min indicates seal or valve-seat wear and must be rectified before commissioning.
Wheel-base (Y) alignment to the pallet face is 1,350 mm (SEP-20) / 1,500 mm (SEP-30) and the front wheel base distance X = 385 mm (SEP-20) / 160 mm (SEP-30) — the smaller X on the 3 t unit trades initial manoeuvrability for higher stability under load [S4]. Torque-check drive-wheel nuts to OEM value (typical 110-140 Nm on M10 grade 8.8); over-torquing will crack the wheel hub. For factories transitioning from manual to powered handling, AS/RS advantages and disadvantages: engineering spec view for 2026 warehouse builds shows where EPTs still dominate the floor-level horizontal moves that AGVs cannot economically cover.
Electrical Commissioning: Battery, Charger, and Safety Interlocks
Battery commissioning: for lead-acid, perform the first full discharge to 20% DoD then a 12-hour equalisation charge; for Li-ion (24 V / 48 V [S1]), a single full charge to 100% SoC is sufficient. Verify the BMS state-of-charge accuracy with a clamp-on ammeter at the end of charge (current must drop to ≤0.05 C, i.e. 2-3 A on a 60 Ah pack). Insulation resistance battery-to-chassis: ≥1 MΩ at 500 VDC per general industrial practice.
Safety interlocks to test: (1) tiller-return-to-neutral cuts drive within 0.5 s; (2) belly-button / reverse-pinch switch reverses direction on contact; (3) lift-lockout when battery voltage drops below the under-voltage cut-out (typically 1.75 V/cell for lead-acid, 2.8 V/cell for LiFePO4); (4) horn and creep-speed mode (≤6 km/h) engage in confined areas. CE-marked units ship with a CE declaration of conformity in English [S1] — keep this in the technical file.
Acceptance Test: Numbers, Tolerances, and What Fails the Sign-Off
Acceptance is a pass/fail checklist, not a handshake. Test values: (1) lift speed loaded, e.g. 0.05 m/s nominal, deviation ±10% allowed; (2) travel speed loaded 4-6 km/h (typical pedestrian EPT), unloaded up to 6 km/h; (3) brake-stop distance from 6 km/h ≤1.5 m on dry concrete; (4) noise ≤70 dB(A) at operator ear; (5) weigher accuracy ±0.5 kg at 1,000 kg test load (Manuvit) [S1]; (6) gradient hold: truck parked on 8% gradient, 1,500 kg load, no rollback for 5 min. If any item fails, do not sign the handover — escalate to OEM service, do not field-trim interlocks.
Documentation to file before the truck goes live: CE declaration [S1], 2-year warranty certificate (Manuvit standard, excluding wear parts [S1]), commissioning report with measured values, operator manual in the local language, and a written daily-check checklist (forks, wheels, brakes, battery, horn, lift). For the overall warehouse automation roadmap, AS/RS system types and classifications: a 2026 spec map helps decide when an EPT should be replaced or supplemented by AGV pallet jacks.
Trackable signal 1: whether the OEM-provided CE certificate is bilingual (EN + local language) or English-only — English-only documentation has caused customs hold-ups in several non-EN markets in 2025-2026 [S1]. Trackable signal 2: whether the as-built floor flatness was actually measured with a 3 m straightedge before delivery — most premature wheel-bearing wear claims in 2025-2026 trace back to skipped flatness checks rather than truck defects. Verify the actual battery chemistry (lead-acid vs. LiFePO4) on the shipping document, since nameplate voltage alone (24 V vs. 48 V) does not disclose it [S1].
Spec-level background on the components involved: linear guide.