With 20+ years comprehensive modular engineering experience, ENCO offers one-stop custom skid solutions for chemical, oil & gas, new energy, pharma and environmental sectors. ENCO design containerized skids with self-produced core equipment for both domestic and overseas use. All units pass in-house FAT and meet domestic and international standards (ASME, PED, CE). Backed by our full EPC system, our integrated, relocatable and fast-delivery modular solutions effectively address client pain points like long construction cycles, large footprints, difficult retrofits and complex export compliance.
Skid Classification
Pumping Skids
The core unit for fluid transport and pressurization is equipped with pumps, valves, and a control system to achieve stable fluid supply.
Filtration Skids
Remove solid particles or impurities from fluids to ensure the cleanliness of downstream equipment and processes.
Heat Exchanger Skids
It can heat, cool, or keep the temperature of the medium to meet the needs of precise thermal management.
Metering / Chemical Injection Skids
It enables high-precision metering and dosing of chemicals, and is suitable for chemical dosing scenarios in oil and gas fields and water treatment.
Compressor Skids
Used for gas pressurization, transportation or recovery, with its own cooling and safety interlock system.
Electrical & Control Skids
It integrates power distribution, PLC control, and HMI, serving as the core of automation for the entire plant or a single set of equipment.
Air Separation Skids
It integrates compression, purification, and separation units for on-site production of high-purity oxygen and nitrogen, featuring a compact footprint and fully automated operation.
Customized Skids
Non-standard customized solutions for special processes or extreme working conditions, flexibly adaptable to various complex projects.
Advantages of ENCO Modules
1. Significantly Reduced Footprint and Compact Layout:
Utilizing a highly integrated, compact layout design, it saves up to 40% of factory space compared to traditional on-site bulk equipment, making it particularly suitable for projects with limited land resources or existing factory renovations.
2. Shortened Construction Cycle and Reduced On-Site Construction:
The entire process is optimized for factory prefabrication from the early design stages, transferring a significant amount of work to the workshop. Compared to traditional methods, this reduces on-site construction and installation workload by over 50% and the overall construction period, significantly accelerating project commissioning.
3. Avoids Multi-Party Coordination Errors and Improves Overall Quality:
Employing unified design standards and manufacturing specifications effectively avoids coordination errors that can easily occur when multiple disciplines such as civil engineering, process engineering, electrical engineering, and instrumentation work simultaneously on-site, ensuring overall system reliability and consistency.
4. Reserved Space for Expansion and Upgrades, High Flexibility:
The detachable modular structure design, rather than permanent fixed integration, provides flexible interfaces and physical space for future factory capacity expansion, equipment upgrades, or process technology improvements.
5. Adaptable to international logistics, ensuring global delivery.
The overall transportation framework has been optimized before leaving the factory, strictly meeting international sea and land transportation standards in the fields of chemical, oil and gas and hydrogen energy projects. It can effectively cope with cross-border transportation challenges and facilitate convenient delivery and project implementation worldwide.
Design Capabilities
ENCO multi-disciplinary in-house engineering team covers chemical process, mechanical structure, piping & instrument, electrical automation, pressure vessel calculation fields. 120+ professional workers, dedicated process engineers to solve complex technical difficulties for fine chemical, pharmaceutical, new energy recycling, brine treatment, oilfield & hydrogen projects. ENCO adopt full digital design workflow to realize precise skid layout:
Process simulation & heat balance calculation
Complete material evaporation, crystallization, heat transfer, gas phase separation analog to optimize process parameters.
3D overall modular modeling
Whole skid 3D layout, pipeline collision inspection, equipment space rational arrangement.
Isometric piping drawing & structural strength analysis
Output standard 2D fabrication drawings, BOM list, mechanical stress test report.
Automatic control system matching design
Customized PLC/DCS control scheme, data acquisition & remote monitoring integration.
Manufacturing Capabilities
ENCO has 2 in house manufacturing centers for module fabrication. Our workshops are equipped with large lifting equipment, automatic welding lines, CNC,laser cutting machines and integrated testing stations. Sufficient supporting equipment realizes segmented production of different types of modular equipment, improving processing efficiency and finished product precision.
ENCO implement closed-loop manufacturing procedures for all skid units:
Steel Structure Prefabrication
Cutting, bending, forming and welding of skid load-bearing frames, container base frames to meet international transportation load standards.
Pipe Spool Prefabrication
Integrated prefabrication of process pipes, instrument tubes, with pre-assembly to eliminate on-site pipe collision risks.
Equipment & Instrument Integration
Integrate pumps, heat exchangers, separators, valves, sensors, electrical cabinets onto steel frames as a whole set.
Welding & NDT Inspection
Full-process welding traceability, radiographic, ultrasonic nondestructive testing for all pressure-bearing parts.
Factory testing
Before delivery, all ENCO finished skids undergoes complete off-line testing including hydrostatic pressure test, air tightness test and full linkage commissioning of PLC/DCS automatic control system. After passing all test items, ENCO will provide complete delivery materials including fabrication 2D drawings, piping isometric drawings, full BOM list, test reports and operation manuals, to ensure clients obtain complete technical documents for installation and operation.
ENCO whole production process adopts strict ISO quality control system, with independent inspection stations set up in each processing link for material incoming inspection, intermediate inspection and finished product inspection. ENCO hold complete manufacturing qualification certificates including pressure vessel manufacturing licenses, ASME production stamps and welding qualification certifications. Meanwhile, ENCO own multiple independent patents for modular skid assembly, anti-corrosion forming and efficient pipeline layout, continuously optimizing production craft to improve skid stability and service life.
Application Industries
With its core advantages of high integration, ready-to-use, and flexible relocation, skid-mounted equipment is widely used in ten major industries, including oil and gas, chemical and pharmaceutical, new energy and environmental protection, water treatment, food and beverage, mining and metallurgy, power and data center, marine engineering, building materials and construction, as well as paper, textile and rubber and plastics, providing rapid deployment solutions from single-unit modules to complete plant systems for the global process industry.
Oil & Gas Industry
Typical applications: Wellhead metering, oilfield water injection, gas pressurization, associated gas recovery, chemical injection, crude oil dehydration and desalting.
ENCO skids integrate ESD and fire/gas detection interfaces in compact footprints with standardized lifting points for remote onshore and offshore sites. Our factory-assembled, site-placed model reduces field hot work and cuts project schedules by up to 40%, significantly improving HSE compliance and logistics efficiency.
Chemical & Pharmaceutical
Typical applications: Reactor feeding, distillation reflux control, solvent recovery, catalyst injection, high-purity filtration, clean steam preparation.
ENCO skids embed closed-loop control, SIL-rated interlocks, and leak-detection systems for high-temperature, high-pressure, or flammable media. Pharmaceutical units feature sanitary 316L piping, slope-to-drain design, and automated CIP/SIP cycles, meeting GMP standards while accelerating FAT/SAT through workshop pre-assembly and full pretesting.
New Energy & Environmental Protection
Typical applications: Electrolyzer cooling, PV/semiconductor gas abatement, lithium-battery synthesis temperature control, CCUS amine circulation, spent-battery extraction-separation.
ENCO modular skids bridge R&D to gigafactory scale with fast-connect utilities, redundant heat-exchange circuits, and adaptive controls for variable feedstocks. Corrosion-resistant alloys and multi-stage filtration ensure stable uptime in aggressive CCUS and battery-recycling environments, supporting high-utilization continuous operations.
Water Treatment – Municipal & Industrial Wastewater
Typical applications: Municipal pH correction, coagulant/flocculant dosing, carbon-source feeding; industrial heavy-metal precipitation, Fenton oxidation reagent delivery, ammonia-stripping pH control, sludge-dewatering polymer conditioning.
ENCO skids are pre-engineered for rapid site replication with full factory hydrotesting and logic verification. On-site hookup requires only main connections, enabling 48-hour start-up. For aggressive industrial effluents, lined piping, double-containment, and explosion-proof options ensure durability against salinity, extreme pH, or abrasives.
Industry Modular Cases
Japan's Modular Ultra Pure Lithium Salt Project
Project Type : Ultra Purity Lithium Salt Modular Production Unit Integration Project
Equipment Name : Membrane separation skid-mounted equipment
Project Capacity : 0.04 - 0.1 tph
Destination : Japan
Integrated Skid-Mounted Wastewater Treatment System for Oilfields
Project Type: Integrated Skid-Mounted Wastewater Treatment System for Oilfields
Equipment Name: Pretreatment + Membrane Concentration + MVR Evaporation Skid-Mounted System
Project Capacity: 6 tons/hour
Destination: Texas, USA
Biogas By-product Resource Utilization Skid Project
Equipment Name: Energy-cycle Evaporation Crystallization Skid Equipment
Project Capacity: 0.5 t/h
Destination: Nuremberg, Germany
NMC Ternary Material and Lithium Metal Skid-Mounted Production Equipment Integration Project
Equipment Name: Ternary Precursor and Lithium Metal Preparation Skid-Mounted Equipment
Project Capacity: 2500 tons/year
Destination: USA
Integrated Project of Skid-Mounted Complete Set of Equipment for Crushing and Sorting Power Battery Modules
Project Type: Integrated Project of Skid-Mounted Complete Set of Equipment for Crushing and Sorting Power Battery Modules
Equipment Name: Skid-Mounted Complete Set of Equipment for Crushing, Sorting, and High-Temperature Pyrolysis
Project Capacity: 2 tons/hour
Integrated Project of Skid-Mounted Evaporation and Crystallization Equipment for Power Battery Recycling
Project Type: Integrated Project of Skid-Mounted Evaporation and Crystallization Equipment for Power Battery Recycling
Equipment Name: Skid-Mounted Evaporation and Crystallization Equipment
Project Capacity: 4 tons/hour
Destination: South Korea