The Main Points of Small Roller in Subgrade Construction

Speaking of after-sales service, in fact, the after-sales service of the entire flooring industry has always been lacking. When there is a problem with a customer's equipment, there is always the problem of the manufacturer not responding in time, or even not responding at all. There have been many customers in the past who were unable to receive timely after-sales service due to problems when purchasing concrete laser leveling machines from other manufacturers. This not only delayed the construction period, but also caused a certain degree of losses. As a service benchmark in the flooring industry, Wanshi Machinery has always put the needs of customers first and adhered to its "three ones" commitment. In fact, after-sales service is not just about helping customers, but also about helping yourself. For a company, credibility and reputation are crucial, and after-sales service is the cornerstone of credibility and reputation. Wanshi Machinery fulfills the Three Ones promise, "response within a quarter of an hour, arrive within one day, and solve the problem within one day." Only a quarter-of-an-hour response can reassure customers, arrival within one day can ensure that the construction period is not delayed, and solving problems within one day is a reflection of technical strength. These three points bring confidence to customers and guarantee their decision to choose Wanshi Concrete Laser Leveling Machine. The customer's problems are the company's problems, and the customer's confidence is the company's confidence. The two are closely connected, which is the relationship between water and boat. Wanshi Machinery always keeps customers in mind and adheres to the three one promises. Not only do we want customers to choose Wanshi Machinery, but we also want customers to have no regrets about their choice.

    The construction plan for a concrete laser leveling machine must be tailored to the project type (e.g., industrial plant, underground garage, large plaza, etc.), concrete grade, and site conditions. The core design principle is "standardized processes and controllable precision." The following is a general plan framework and examples of typical scenarios: Floor Flatness Error: ≤3mm/2m (core indicator for laser leveling); Concrete Density: ≥98% (avoiding sanding and hollowing); Construction Schedule: Planned based on a "500-800㎡/shift" (per machine). Stages Key Work Areas Core Requirements 1. Construction Preparation ① Base Preparation: Compaction (compaction degree ≥ 95%), debris removal, and watering (no water accumulation); Base leveling error ≤ 5mm/2m; Laser signal unobstructed (avoid metal and strong light). ② Laser System Commissioning: Transmitter calibration (horizontal error ≤ 0.1mm/m), receiver sensitivity test; ③ Material Preparation: Concrete (slump 120-160mm, initial setting ≥ 4h), geotextile/plastic film curing 2. Concrete Pouring ① Spreading: Use a tanker or concrete spreader to spread the material evenly, 30-50mm above the design elevation (allowing for leveling margin); Material spreading speed matches leveling speed (no accumulation or material shortages); Bin seams align with subsequent expansion joints. ② Combination Casting: For large areas, divide the concrete into 6-8m wide compartments (with temporary dividers) to prevent cracking after initial setting. 3. Laser Leveling ① Equipment Movement: Drive at a constant speed (0.8-1.2m/min), following a "horizontal back-and-forth" pattern with staggered overlaps; Real-time monitoring of the laser receiver (steady green indicates normal operation); immediate shutdown and calibration if deviation exceeds 2mm. ② Vibration Control: Insert the vibrator ≥ 50mm (penetrating the current paving layer) to ensure the connection between the upper and lower layers. 4. Finishing ① Rough Finishing: After the leveling passes, manually use a scraper to assist with leveling (to address any minor vibration leaks or unevenness). Timing of fine cutting is critical: premature cutting can lead to sanding, while delayed cutting may prevent surface air bubbles. ② Fine Finishing: After the concrete surface has cleared of water seepage (no noticeable indentations when pressed with a finger), use a trowel (with a disc) to smooth the surface 2-3 times. 5. Curing ① Covering: Cover with geotextile/plastic film within 1-2 hours of completion (before initial setting). No personnel or material stacking is permitted during the curing period; avoid freeze-thaw cycles in winter. ② Moisturizing: Water the surface every 2 hours in summer (to keep the film moist), and cover with a thermal blanket in winter (curing temperature ≥ 5°C). ③ Curing Time: ≥ 7 days (≥ 14 days for C30 and above concrete). 6. Expansion Joint Cutting ① Timing: 24-48 hours after pouring (surface hardness reaches 1.2 MPa, and no visible marks are visible when scratched with a fingernail). Clean the seams after cutting and apply sealant later to prevent water seepage. ② Specifications: Joint depth = 1/3-1/4 of the floor thickness, spacing ≤ 6 meters (required for areas over 36 square meters), joint width 5-8 mm. Key Differentiations: Concrete Grade: C35/C40 (one grade higher than standard flooring) is used, with polypropylene anti-cracking fiber (0.9 kg/m³) added to reduce thermal cracking. Laser System: Due to obstruction by pillars in the garage, a "multi-transmitter zoned coverage" system (one transmitter every 15-20 meters) is used to avoid signal blind spots. Surface Optimization: After finishing, diamond wear-resistant aggregate (5-6 kg/m²) is applied, followed by finishing with a high-speed trowel to improve surface hardness (Mohs hardness ≥ 6). Key Differentiators: Base Reinforcement: 300mm thick graded sand and gravel with a 150mm thick C25 cushion layer (50% thicker than standard flooring) ensures a load capacity of ≥5t/m2; Leveling Parameters: Vibration frequency is adjusted to 60-70Hz (compared to 50Hz for standard flooring) and travel speed is reduced to 0.6-0.8m/min to enhance concrete density; Post-treatment: After curing, a sealant and curing agent treatment (penetration depth ≥5mm) is applied to improve the floor's compressive strength (≥80MPa) and impermeability. Key Differentiations: Optimized Compartmentalization: Compartments are divided into 10m x 10m squares (common flooring requires 6-8m). Expansion joints (filled with foam board) are provided to relieve thermal stress. Concrete Control: Low-heat cement (heat of hydration ≤ 270kJ/kg) is used, and a retarder is added in summer (extending the initial setting time to 6-8 hours) to prevent cracking due to temperature differences. Laser Calibration: Transmitter levelness is rechecked every 2 hours (common flooring requires 4 hours). Because the plaza is unobstructed, a wind shield is required to prevent strong winds from interfering with the signal. Staffing: Each machine is equipped with one operator (certified) + two fabricators + two finishers + one laser monitor. Equipment Inspection Checklist: Before starting the machine, check the laser transmitter battery, vibrator wear, and tire pressure (tolerance ≤ 0.1 MPa). Emergency Plan: If the initial setting of the concrete is too rapid, immediately activate the backup leveling. If the laser signal is lost, switch to manual mode (using the adjacent leveled surface as a reference).   Note: The parameters provided in this document are for reference only and are not mandatory. Due to differences in technical characteristics between different brands and models of laser levelers, please consult the manufacturer for a suitable solution before actual operation. This reference document assumes no responsibility for any issues arising from failure to follow the manufacturer's instructions.      

Instructions for operation and debugging of YZ30-4 medium-sized telescopic arm laser leveling machine: 1. When starting the continuous punching press, the screw must rotate clockwise to adjust the speed of the feeder, and the slider moves slightly slowly so that you can see whether the slider touches the nylon washer and the length adjustment screw during reciprocating motion. 2. Before connecting the power supply for testing, check whether the feeding direction is correct. 3. If the speed of the punch is constant and the feed distance needs to be shortened from long to short, first the lead screw should be guided to reduce the drop distance of the floating rod, and then the screw should be rotated clockwise to adjust the speed so that the feed can Match P. UNCH speed. 4. Adjust the distance between the material rack and the concrete laser leveling machine and the feeder, and adjust the distance appropriately according to the speed of the punch and the length of the feeder. After leveling, the material should be able to enter the feeder and mold smoothly. With incredible pulling power and a computerized automatic leveling control system, the YZ30-4E laser is a riding four-wheel drive device that can scrape flat in any direction and is easy to handle. Versatile as a laser scraper or laser controlled rake, the YZ30-4E provides simple, fast and accurate results whether you are scraping concrete or preparing roadbed. This is a telescopic arm type concrete laser leveling. Arms are up to 6 meters long to increasethe paving area, The body can rotate 360 degrees, with two-wheel steering, four-wheelsteering, and crab walking. Solid tire has a long anti-puncture life. Equipped with a hydrauliccleaning water pump to clean the working head at any time. Vanse offers a wide portfolio of products that cover concrete slab placements in all types construction projects. In addition, to equipment and software products, Vanse also sells parts, accessories and provides service and training to customers to keep their machines up and running and operating optimally.