YHZM Mobile Drum Concrete Batching Plant 25–120 m³/h | GZD Machinery

The GZD YHZM mobile drum-type concrete batching plant is a fully integrated, trailer-mounted concrete production facility that consolidates aggregate storage, multi-component weighing, belt conveying, drum mixing, and microcomputer control onto a single towable chassis. Unlike stationary batching plants that require weeks of foundation pouring, civil engineering, and crane-assisted assembly, the YHZM mobile concrete batching plant arrives on site as a pre-assembled unit — connect the power, position the cement silo, and the plant is ready to discharge its first batch within hours. Available in seven output ratings from 25 m³/h to 120 m³/h, this mobile drum concrete batching plant is engineered for contractors and project owners who face dispersed work sites, tight construction schedules, and limited infrastructure — the exact conditions that dominate rural road projects, mining camp construction, pipeline corridors, and post-disaster recovery operations across emerging markets.

1 Integrated Trailer Chassis with Foundation-Free Deployment

The defining engineering achievement of the YHZM mobile concrete mixing plant is its monolithic trailer chassis — a heavy-duty welded steel frame (Q345B, main beam thickness ≥ 12 mm) that carries every functional module: aggregate batching bins, weighing hoppers, belt conveyor, drum mixer, cement screw conveyor, water and admixture dosing systems, control cabin, and cement silo mounting bracket. The entire plant is designed to be towed at speeds up to 30–60 km/h on paved roads (depending on model and local regulations) without partial disassembly — the folding conveyor, removable guardrails, and hinged aggregate bin lids reduce transport width to within standard highway limits. Upon arrival at a new site, deployment requires only four hydraulic outrigger jacks to level the chassis, connection of power cables, and attachment of the cement silo (which ships separately and bolts onto the chassis frame). No concrete foundation is required; the plant operates on compacted gravel or even bare soil, with the outrigger pads distributing the operational load across a sufficient footprint. This foundation-free concrete batching plant design eliminates the 2–4 week civil engineering phase that stationary plants demand — a critical advantage for projects with construction windows measured in weeks, not months.

2 JZM Drum Mixer — Reverse-Discharge Simplicity with Low Maintenance

At the core of the YHZM mobile drum concrete batching plant is a JZM-series self-falling, double-cone, reverse-discharge drum mixer — a proven design refined over decades of field service in the harshest construction environments. The drum rotates clockwise at 14–17 r/min for mixing and counter-clockwise for discharging, eliminating the need for a separate tilting mechanism or discharge gate that could jam, leak mortar, or require replacement. The gear-ring transmission delivers smooth, balanced rotation with noise levels below 75 dB at 1 m — quiet enough for urban and suburban operation without noise complaints. Internal mixing blades are fabricated from wear-resistant high-chromium alloy steel (HRC ≥ 50), and the drum interior features replaceable wear liners in high-abrasion zones, extending service life to 50,000+ batching cycles before liner replacement. The JZM drum mixer’s gentle tumbling action causes minimal degradation to coarse aggregates — an advantage over twin-shaft forced mixers that can fracture lightweight or fragile aggregates, making the YHZM mobile concrete plant particularly well-suited for producing specialized concrete mixes with lightweight expanded clay, recycled aggregates, or fragile limestone chips common in developing-market concrete supply chains.

3 Multi-Component Weighing System with ±1% Accuracy

Batching precision is the single most critical factor in concrete quality control — and the YHZM mobile concrete batching plant delivers independent, cumulative weighing for all four material groups: aggregates, cement (or fly ash), water, and chemical admixtures. The aggregate weighing hopper sits beneath the PLD-series batching machine (2 or 3 bins depending on model), using load cells with ±1% accuracy — a standard that meets or exceeds ASTM C94 and EN 206 requirements for ready-mix concrete production. The cement weighing hopper is suspended from load cells and fed by an LSY219 screw conveyor from the attached cement silo, with automatic drop compensation that corrects for the “in-flight” material between the conveyor discharge and the weighing hopper. Water is metered by a time-relay-controlled pump with ±2% accuracy, while liquid admixtures are dosed through a dedicated metering pump with ±1% precision. All weighing data is logged by the microcomputer control system, stored for 10,000+ batches, and can be printed via the onboard ticket printer — providing the audit trail required for QA/QC acceptance on government-funded infrastructure projects.

4 PLC Microcomputer Control — One-Operator Automation

The YHZM mobile drum concrete batching plant is controlled by an industrial PLC (Siemens or Schneider components) housed in a dust-proof, climate-controlled control cabin mounted on the chassis. The system supports both fully automatic and manual operating modes — in automatic mode, the operator selects a mix recipe from the stored library (up to 60 recipes), enters the batch quantity, and presses start. The PLC then executes the entire production cycle: aggregate batching → weighing → belt conveying → cement dosing → water and admixture metering → drum mixing → discharge — without further operator intervention. A 15-inch color touchscreen displays real-time material weights, drum status, conveyor speed, and alarm history. The system also features automatic moisture compensation (optional): when an aggregate moisture sensor detects elevated water content in the sand bin, the PLC automatically reduces the added water quantity to maintain the target water-to-cement ratio — a function that prevents strength variability in hot, humid climates where aggregate stockpiles are exposed to rain. This level of automation reduces the operating crew to 1–2 persons per shift, cutting labor costs by 50–70% compared to manually operated drum mixers producing equivalent output.

Case 1: Rural Road Rehabilitation — Colonia Department, Uruguay

Equipment: 1 × YHZM35 (35 m³/h, JZM750 drum mixer, PLD1200 3-bin batching machine) Project: Municipal road rehabilitation, small-scale bridge and culvert construction, and supporting infrastructure development across 6 dispersed sites in Colonia Department. Daily concrete demand: ~180 m³/day, 8-hour shifts.

Challenge: The client’s projects were geographically dispersed across a 40 km radius, with construction schedules too tight for a stationary batching plant at each location. Ready-mix delivery from Montevideo was 150+ km away, making each truckload prohibitively expensive and prone to workability loss in Uruguay’s summer heat.

Solution: A single YHZM35 mobile drum concrete batching plant was deployed. The plant was towed between sites using a standard tractor unit — relocation time averaged 3 hours (including towing, leveling, and cable connection). The JZM750 drum mixer, with its 750 L discharge capacity and 14 r/min rotation speed, achieved a stable output of 25–28 m³/h after adjusting for local aggregate moisture content — sufficient for the project’s 180 m³/day average demand. The PLD1200 three-bin batching machine simultaneously stored sand, 10–20 mm gravel, and 20–40 mm crushed stone, with ±1% batching accuracy ensuring consistent C30–C50 mix ratios.

Result:

Plant relocated 5 times with zero downtime for foundation work

C40 concrete achieved 48.2 MPa 28-day compressive strength — exceeding Uruguayan standards by 10%

Energy consumption: 5.2 kWh/m³ (vs. 6.5 kWh/m³ market average) — annual savings ~$12,000

Transportation cost savings: $30,000/month (eliminated 80 km ready-mix delivery)

Total concrete produced: 4,200 m³ across 6 sites in 4 months

Case 2: Rural Infrastructure Development — Andean Highlands, Peru

Equipment: 1 × YHZM35 (35 m³/h, PLC control, folding belt conveyor) Project: Road repairs, rural water conservancy works, small bridge construction, and emergency infrastructure across Peru’s mountainous regions. Sites were scattered along narrow mountain passes with restricted access.

Challenge: Peru’s complex terrain, narrow mountain roads, and scattered project sites made it impossible to deploy a conventional batching plant. Transporting a disassembled stationary plant required multiple truckloads and 2–3 weeks of reassembly at each site — unacceptable for emergency repair work with tight deadlines.

Solution: The YHZM35’s integrated trailer chassis, folding conveyor, and removable guardrails allowed it to navigate Peru’s narrow mountain passes as a single towable unit. The plant’s optimized internal layout fit into confined spaces at remote construction sites and temporary repair points without extensive site leveling. The PLC control system supported both electric-grid and diesel-generator power modes, adapting to areas with unreliable electricity. The forced-action drum mixer handled locally sourced Peruvian sand and gravel aggregates, producing plastic and dry-hard concrete mixes that met Peruvian construction quality standards.

Result:

Total infrastructure served: 35 km of rural road, 4 small bridges, 2 water canal sections

Plant towed to 8 different sites over 6 months — zero disassembly required between relocations

Setup time at each new site: under 4 hours (vs. 2–3 weeks for stationary plant assembly)

Concrete quality met or exceeded local standards across all project types

Client ordered a second YHZM35 for Phase 2 expansion after 3 months

Case Study 3: Mining Camp Construction — Copper Belt, Zambia

Equipment: 1 × YHZM25 (25 m³/h, JZM500 drum mixer, PLD800 2-bin batching) + 50-ton horizontal cement silo Project: Greenfield copper mine camp construction: 20 worker dormitories, 2 administration buildings, camp perimeter wall, equipment maintenance workshop pad, and a 500 m access road. Total concrete requirement: ~3,500 m³ over 4 months.

Challenge: The mine site was 180 km from the nearest town with a concrete supplier. Ready-mix trucks would need 6+ hours round-trip, and the mine’s access road was unpaved and impassable during the rainy season. The project budget could not accommodate both a permanent batching plant investment and the camp construction itself.

Solution: A YHZM25 mobile drum concrete batching plant was trucked to the site on a single lowboy trailer and operational within 6 hours of arrival. The 40 kW total power requirement was supplied by the mine’s existing 200 kW diesel generator — no grid connection needed. Aggregates were sourced from a nearby riverbed (screened on-site to 5–20 mm and 20–40 mm fractions), and bagged cement was stored in a converted shipping container. The plant’s ±1% weighing accuracy ensured consistent C20 and C25 concrete for foundations and slabs, despite the variability of hand-screened river aggregates.

Result:

At mine closure (estimated Year 7), plant will be towed to the company’s next project — zero stranded asset cost

3,500 m³ of concrete produced on-site over 120 working days (avg. 29 m³/day)

Concrete cost: 72/m³ on-site (vs. 185/m³ delivered ready-mix)

Total savings: $395,500 vs. ready-mix delivery

Plant investment ($15,800 FOB) recovered in Day 22 of operation

Requirement Validation

Sample Development & Testing

Sample Confirmation

Bulk Production & Product Testing

Balance Settlement

Shipment Arrangement