CQDM Series High‑Capacity Stand‑on Electric Reach Truck

Smart Lifting, Easy Moving — LI‑UNILIFT

High‑throughput narrow‑aisle storage facilities demand stand‑on reach trucks that deliver elevated payload capacity, integrated electro‑hydraulic control and flexible battery choices. The CQDM16/20‑810 stand‑on electric reach truck offers 1600 kg and 2000 kg load‑rating variants. Equipped with dual‑cylinder fork tilt assembly, multi‑function ergonomic handle, two‑path lowering solenoid valve and optional LFP lithium‑iron‑phosphate battery, this machine is built for heavy‑duty rack replenishment, high‑bay stock handling and batch order‑picking within compact distribution centres.

Integrated Electro‑Hydraulic Architecture Paired With Brushless Propulsion

The CQDM16/20‑810 adopts maintenance‑free AC brushless traction motor hardware. Carbon‑brush‑related wear points are fully eliminated, which cuts recurring component inspection and replacement labour for fleets running multi‑shift schedules. Electronic power‑assisted steering provides light‑touch, low‑noise directional feedback; operators can execute frequent steering adjustments without excessive physical exertion during extended handling cycles.

This reach truck utilises advanced electro‑hydraulic integrated control matched with a purpose‑built multi‑function handle. All core hydraulic commands for lifting, lowering, tilting and mast reach are centralised on the handle unit. As a result, operators do not need to shift hand positions repeatedly, which streamlines repetitive stacking and retrieval workflows.

Its fork tilting movement is driven by twin hydraulic cylinders. Synchronised oil‑pressure output stabilises forward‑backward fork angle adjustments and suppresses pallet shaking while repositioning cargo. The hydraulic circuit incorporates two‑path lowering solenoid valve hardware that delivers three distinct descent‑speed profiles. Operators can tune lowering velocity according to cargo weight and pallet quality, granting gentle handling for easily‑damaged packaged goods. Long‑life proximity limit switches realise automatic lifting‑limit protection, halting mast upward travel before mechanical over‑stroke occurs and preventing harm to mast chains and hydraulic cylinders. Heavy‑duty polyurethane wheel assemblies sustain dependable rolling performance across indoor concrete warehouse floors.

Layered Active Safety Suite Optimised For Heavy‑Payload High‑Bay Work

Beyond powertrain and hydraulic refinements, interconnected safety mechanisms are engineered to mitigate risks that arise while moving heavy loads at substantial mast heights.

Curve‑triggered automatic deceleration engages immediately once steering inputs are registered. Travelling velocity scales down proportionally through turning actions, which restrains pallet sway and reduces potential tipping hazards for elevated heavy‑weight payloads. Complementing this feature, high‑position travel‑speed limitation automatically restricts driving speed whenever forks are lifted to elevated positions. This logic greatly enhances operational stability for high‑bay racking assignments.

The QEXPEND controller embeds multi‑dimensional automatic protection logics, guarding the whole electrical system against overload, overheating and unexpected electrical anomalies. Standard‑fit emergency reverse device and emergency brake switch supply rapid hazard‑response capability. Operators can trigger instant reverse movement or complete power cut‑off to evade collision incidents. Electromagnetic‑regenerative composite braking delivers consistent stopping performance under both laden and unladen working states, while stepless speed modulation keeps travelling movements smooth and quiet.

Dual‑Battery Options Supporting Intensive Narrow‑Aisle Intralogistics

Featuring 1600 kg and 2000 kg nominal load capacities, the CQDM16/20‑810 fits a broad spectrum of heavy‑duty narrow‑aisle intralogistics assignments. Suitable environments include large‑scale manufacturing finished‑goods storage, high‑density wholesale rack warehouses, high‑volume e‑commerce fulfilment depots and component‑stock facilities requiring heavy‑load high‑bay stacking.

Two separate battery technologies are made available to adapt to different site‑operational requirements. Conventional lead‑acid battery suits cost‑conscious warehouse fleets. Meanwhile, optional lithium‑iron‑phosphate battery delivers fast‑charging capability, high energy efficiency and extended cycle life for round‑the‑clock multi‑shift operations. The mast provides 0‑500 mm forward reach stroke, allowing operators to reach deep into rack bays without repositioning the full chassis. The retractable operator pedal creates two chassis geometries: compact dimensions for tight‑aisle manoeuvring when folded, and full stand‑on riding posture for long‑distance cross‑zone transit when unfolded. Adjustable fork width supports diverse standard and non‑standard pallet formats.

Modular Component Layout Streamlines Field‑Level Servicing

LI‑UNILIFT integrates service‑focused engineering principles across its complete reach‑truck product portfolio, and the CQDM16/20‑810 follows this design direction. Brush‑free AC powertrain, integrated electro‑hydraulic modules, proximity‑switch lifting‑limit hardware and accessible QEXPEND controller simplify inspection, fault tracing and component‑swap work for on‑site maintenance technicians.

• Twin‑cylinder fork‑tilt setup stabilises angular adjustment and minimises cargo shaking during stacking cycles
• Electro‑hydraulic integrated control plus centralised multi‑function handle optimises operator workflow efficiency
• Two‑path lowering solenoid valve offers three descent‑speed profiles for flexible cargo‑lowering management
• Long‑life proximity‑switch lifting‑limit prevents mast over‑travel and protects hydraulic assemblies
• Brush‑free AC traction motor eliminates periodic carbon‑brush inspection and replacement cycles
• Dual battery alternatives: lead‑acid or fast‑charging LFP lithium‑iron‑phosphate battery for varied shift intensities
• Comprehensive safety suite includes curve deceleration, high‑position speed restriction, emergency reverse and emergency brake protection

Advancing High‑Capacity Stand‑on Reach‑Truck Engineering For Dense Warehousing

Modern high‑density intralogistics keeps raising performance expectations for stand‑on reach trucks. Warehouse operators seek higher payload ratings, consolidated electro‑hydraulic control logic, fast‑charge lithium‑battery compatibility and robust multi‑layer active‑safety safeguards without expanding chassis footprint. LI‑UNILIFT carries out iterative practical refinements for high‑capacity AC‑powered stand‑on reach‑truck platforms. These optimisation initiatives cover dual‑cylinder tilt‑hydraulic stability calibration, multi‑function‑handle human‑factor tuning, LFP battery power‑management validation and height‑responsive speed‑limiting algorithm fine‑tuning.

Alongside powertrain and hydraulic‑system upgrades, human‑oriented ergonomics, multi‑layer active‑safety safeguards and rigid high‑load mast construction remain central engineering priorities. The R&D team continues exploring forward‑looking possibilities including load‑dependent speed tuning and unified fleet‑condition monitoring for next‑generation heavy‑duty narrow‑aisle storage facilities.

Technical Specifications