Geosynthetic Applications
Regional Leader in Geosynthetic Applications
Yesti Group provides high-performance geosynthetic material supply and professional installation services for mining and environmental protection projects.
Subgrade Preparation
The objective is to achieve a smooth and stable surface that will ensure the long-term and safe operation of the geomembrane system.
- Subgrade surface inspection
- Removal of sharp stones, roots, and foreign materials
- Necessary subgrade leveling and compaction operations
Material Inspection
This process ensures that all geosynthetic materials to be used in the project comply with quality standards.
- Verification of product certificates and technical specifications
- Physical inspection of material rolls and examination for any damage that may have occurred during transportation
- Flexible for Low-volume manufacturing
Geomembrane Deployment
This stage is of critical importance to ensure that welding operations are performed correctly and safely.
- Positioning of panels in accordance with the plan
- Panel alignment and fixing operations
- Temporary ballasting against wind and site conditions
Seaming Operations
Double Wedge Welding The double wedge welding method is the most common and reliable welding method used for joining HDPE geomembrane panels.
Extrusion Welding The extrusion welding method, used in detail areas, corner connections, and repair works, creates high-strength connections.
All welding operations are performed by certified installation crews.
CQA / QC Testing
These tests guarantee the integrity and containment of the geomembrane system.
- Air Pressure Test Containment control of double-track fusion welds is performed using air pressure.
- Vacuum Box Test Seam lines are checked using the vacuum box method to test for leaks.
- Spark Test Potential holes or defects on the geomembrane surface are detected using electrical methods.
Final Inspection & Documentation
These tests guarantee the integrity and containment of the geomembrane system.
- Inspection of all weld seams and general examination of the installation area
- Evaluation of test results
- Preparation of quality control reports
Our Certificates: ISO 9001:2015 | ISO13485 |
Geosynthetic Application Areas
Yesti Group offers high-performance containment and environmental protection solutions across various sectors where geosynthetic systems are utilized.
Materials and Surface Treatment
Our ability to handle a wide range of materials in CNC machining comes from
extensive experience, advanced machinery and highly skilled staff.
Surface Treatment
| Device name | Quantity (units) | Production place | Brand | Machine tool (mm) |
|---|---|---|---|---|
| 5-axis machining center | 2 | Japan | Mazak | 0.01 |
| Turn-milling compound | 4 | Japan | Mazak | 0.005 |
| Low-speed wire-cutting | 2 | Japan | Sodick | 0..01 |
| CNC lathe | 4 | USA | Hardinge | 0.002 |
| High speed machining center | 3 | Taiwan | JIATIE | 0.002 |
| Small grinding machine | 2 | Taiwan | YUTON | 0.003 |
| Swiss-type lathes | 6 | France | Citizen | 0.002 |
| Low-speed wire-cutting | 4 | Japan | Sodick | 0.005 |
| EDM | 5 | Japan | Citizen | 0.003 |
| Processing | Travel range |
|---|---|
| CNC Machining Center (3-axis / 4-axis / 5-axis) | 1000*500*500mm / 850 * 500 * 500mm |
| CNC Lathe | Ø430mm, Length 1200mm |
| CNC Milling Machine | 600 * 500mm / 800 * 400mm |
| Manufacturing Capacity | 1 – 2000pcs parts/day |
| Accuracy | Accuracy: Lathe ±0.01 mm, Milling machine ±0.005 mm |
| End mill | Diameter 1 – 20 mm |
| Face milling cutter | Diameter 50 – 200 mm |
| Spindle speed | 600 – 20,000 RPM |
| Machining accuracy | ±0.005 mm |
| Dimension Range (mm) | Fine (F) +/- | Medium (M) +/- | Coarse (C) +/- | Very Coarse (V) +/- |
|---|---|---|---|---|
| 0.5-3 | 0.01 | 0.05 | 0.1 | — |
| 3-6 | 0.03 | 0.1 | 0.15 | 0.5 |
| 6-30 | 0.05 | 0.15 | 0.3 | 1.0 |
| 30-120 | 0.1 | 0.3 | 0.5 | 1.5 |
| 120-400 | 0.2 | 0.5 | 1.2 | 2.5 |
| 400-1000 | 0.3 | 0.8 | 2.0 | 4.0 |
| 420-1100 | 0.2 | 0.9 | 2.1 | 4.5 |
| 450-1300 | 0.4 | 0.6 | 3.0 | 5.0 |
| 470-1400 | 0.5 | 0.7 | 2.0 | 4.0 |
| Name | Applicable materials | Color | Can Be Applied with |
|---|---|---|---|
| As machined | Aluminum, Steel, Stainless Steel | Ra 0.8μm – Ra 3.2μm | All post processes |
| Anodizing | Aluminum | Clear, black, grey, red, blue, gold | Bead blasted, Tumbling, Chem film* |
| Bead blasted | Aluminum, Copper, Mild steel | Coarse sand #16 #20 #30 | All post processes |
| Black Oxide | Steel, Stainless Steel | — | Bead blasted, Tumbling, Passivation |
| Electroless Nickel Plating | Aluminum, Steel, Stainless Steel | — | Bead blasted, Tumbling |
| Electropolishing | Steel, Stainless Steel | — | — |
| Passivation | Steel, Stainless Steel | — | Black Oxide, Electroless Nickel Plating |
| Tumbling | Aluminum, Steel, Stainless Steel | — | All post processes |
| Zinc Plating | Steel, Stainless Steel | — | Bead blasted, Tumbling, Passivation |
| Chrome Plating | Stainless Steel, Nickel Alloy | Chromium, black chromium | — |
| Brushed | Stainless Steel, Aluminum Alloy | Small brushed 6.5-8mm/2.0-4.0mm | — |
| Nano coating | For applicable material processing | Full Coating or RAL color catalog | — |
Geomembrane Applications
Yesti Group carries out the professional installation of geomembrane systems with experienced field teams and modern equipment.
HDPE geomembrane deployment
PVC geomembrane applications
Geomembrane panel placement
Extrusion welding applications
Double wedge welding systems
Yesti’s field teams, consist of TÜV-certified welding masters and experienced geomembrane installation technicians. consist of.
Mining Containment Systems
Geosynthetic systems used in the mining sector are of critical importance in terms of environmental safety and containment.
Yesti Group specializes particularly in the following mining projects:
Heap Leach Pad (HLF) applications
Tailings Storage Facility (TSF) systems
Waste Storage Facilities (TSF)
Ore processing ponds
Process water ponds
Evaporation pond systems
These systems play a critical role in protecting groundwater resources and reducing environmental risks.
Your Reliable Solution Partner For Your Project
Having over 30 years of field experience in the supply and installation of geosynthetic systems, Yesti Group offers reliable engineering solutions for mining and environmental protection projects. We are pleased to be your solution partner in the planning, material supply, and installation processes of your projects.
Services We Offer As Yesti Group;
Fill out the form to get information about your project or request a quotation; let our technical team contact you as soon as possible.
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