A foundation-free concrete mixing plant is the contractor’s dream: no costly excavation, no waiting for concrete to cure, and the freedom to relocate within days. Zoom GlobalMech Corp pioneered this concept with its modular HZS series, where the entire structure sits on integrated steel skids and adjustable screw legs. Yet the absence of a deep foundation does not mean “maintenance-free.” Instead, it demands a disciplined routine that keeps the plant level, clean and calibrated. Below is a field-proven checklist that crews from Bangkok to Bac Ninh follow to ensure 10-year design life—even on laterite soils that shift with the monsoon rains.  

 

 

1. Daily Pre-Start Walk-Around (5 minutes)  

Before the first batch, operators circle the skid frame, confirming that all 12 adjustable legs remain in contact with the load plates. A simple carpenter’s level across the mixer platform should read within 2 mm per meter; anything greater risks uneven drum wear and inaccurate weighing. Tighten jam nuts by hand, never with impact guns, to avoid thread galling. Next, inspect the rubber skirts on the aggregate belt: if gaps exceed 5 mm, dust will migrate into the gearbox. A quick sweep with compressed air keeps photo-eye sensors free of fines, preventing phantom “empty” alarms that stop production.  

 

2. Weekly Structural & Hydraulic Checks (30 minutes)  

Foundation-free plants absorb vibration through a tuned elastomer pad under each skid shoe. Every 50 operating hours, measure pad thickness; if any pad is compressed more than 3 mm below nominal, shim it with a laser-cut steel plate to restore uniform load distribution. Zoom GlobalMech supplies color-coded shims in 1 mm increments for this purpose. Simultaneously, cycle the hydraulic lifting rams that raise the plant for container loading. Look for seepage at the chrome rods; a single drop per minute equals 1 L lost per week—enough to starve the pump during a critical relocation. Replace rod wipers on site; they cost less than US$2 and require no special tools.  

 

 

3. Monthly Calibration & Belt Tracking (60 minutes)  

Accuracy is the plant’s profit center. Use certified 20 kg test weights to verify each aggregate scale; deviation must be within ±0.1 %. If not, run the Zoom GlobalMech “Auto-Span” routine via the touch screen, which recalibrates load-cell span without laptop software. While the plant is empty, jog the belt and watch the edge wear strips: a belt that creeps 5 mm per revolution will slice through the skirt rubber in a month. Adjust the crowned drive roller set-screws until the belt stays centered; mark the final position with paint so operators can spot drift early.  

 

4. Quarterly Relocation & Deep Clean (Half-day)  

One of the greatest advantages of a foundation-free plant is mobility. Treat relocation as a scheduled maintenance event. After the last pour, run the mixer empty with 200 L of water and 20 kg of pea gravel for 5 minutes; this knocks off residual mortar. Drain the water through the wash-out chute, then retract the screw legs until the skid shoes clear the ground by 20 mm. A 50-ton mobile crane can load the entire module onto a low-bed in 20 minutes. At the new site, re-level within 30 minutes using the built-in digital inclinometer—no survey crew required.  

 

Follow this regimen and Zoom GlobalMech Corp’s foundation-free plant will deliver decade-long reliability, lower operating costs, and the freedom to chase the next project without leaving a trace behind.