# eZWalker > Intelligent 3D Plant Walkthrough and Review for Engineering Teams Canonical: https://www.ramcadds.com/products/ezwalker Source: RAM CADDSYS product catalog — https://www.ramcadds.com/products Last verified: 2026-07-18 Categories: bim-solutions eZWalker is a lightweight 3D plant review and walkthrough software designed for industrial plant engineering teams. It enables engineers, operators, and project stakeholders to navigate, review, and collaborate on large 3D plant models without requiring a full CAD license—improving constructability review, clash resolution, and handover efficiency. eZWalker is a 3D plant and building review platform from Beijing DMS Co., Ltd., distributed in India by RAM CADDSYS. It consolidates finished models from PDMS, SmartPlant 3D, Revit, AutoCAD Plant 3D, SolidWorks, CATIA and IFC into one lightweight scene for collision checking, ergonomic access review and markup — without a CAD licence. Camera Sync jumps a flagged issue straight back into SP3D or PDMS. eZWalker provides industrial plant engineering and construction teams with an accessible, high-performance 3D model viewer for facilities review, constructability walkthrough, and stakeholder collaboration. It reads models from major plant design platforms including PDMS, E3D, PDS, and SmartPlant, enabling the entire project team—including operators, maintenance engineers, and site supervisors—to engage with the 3D model without specialist CAD software. ## Key points - eZWalker is a 3D plant and building review viewer, not a CAD authoring or structural-design tool — it reads finished models rather than creating geometry. - It consolidates multi-discipline, multi-software models — PDMS, SmartPlant 3D, Revit, AutoCAD Plant 3D, SolidWorks, CATIA and IFC — into a single reviewable scene. - Model-lightweighting compresses original files by up to roughly 70x from a ~100 MB install, so refinery- and process-plant-scale scenes roam smoothly in real time. - Camera Sync jumps a reviewer straight back to a flagged issue's exact location inside SP3D or PDMS, closing the review-to-redline loop quickly. - A built-in ergonomic inspection module with 22 international-standard human models checks operator access and maintainability before construction begins. - RAM CADDSYS supplies eZWalker in India with licensing, training and technical support. - Gives the whole project team — operators, maintenance, site supervisors, EPC stakeholders — interactive access to large 3D plant and building models without a full CAD seat. - Lightweight by design: the installer is only ~100 MB and model-lightweighting compresses original files up to ~70x while preserving data integrity, so very large scenes roam smoothly. - Reads and merges multi-discipline, multi-software models (PDMS/RVM, SP3D, Revit/RVT, AutoCAD Plant 3D/DWG, SolidWorks, CATIA, IFC) into a single reviewable scene. - Catches collisions and interferences (piping, equipment, structure, HVAC) during design review — before fabrication and construction. - Camera Sync jumps straight back to the exact issue location inside SP3D or PDMS, closing the review-to-redline loop fast. - Built-in ergonomic inspection with 22 international-standard human models flags access, reach, and operability problems early. - Model-comparison mode (two windows, single license) tracks revisions and confirms that flagged issues were actually resolved. - Runs on Windows PC plus native iOS and Android apps, so reviews continue on a tablet on the plant floor. ## Why engineers pick it - **Immersive Walkthrough** — Real-time first-person navigation through large-scale industrial plant 3D models. Evaluate constructability, access routes, equipment clearances, and pipe routing without leaving the office. - **Multi-Discipline Collaboration** — Enables process engineers, mechanical engineers, operators, and construction managers to review the same 3D model simultaneously without requiring individual CAD licenses. - **Multi-Format Model Support** — Reads 3D plant models from PDMS, E3D, SmartPlant 3D, PDS, and other major plant design platforms. - **Review and Markup** — Issue creation, markup annotation, and review comment tools enable structured design review and punch-list management directly within the 3D plant model. ## Capabilities - **High-performance lightweight 3D visualization** — An in-house XRE rendering core plus model-lightweighting technology compresses original models up to ~70x, letting users roam refinery-, power-plant- and process-scale scenes in real time from a ~100 MB install. - **Multi-source model consolidation** — Reads models from major plant and BIM platforms — PDMS (RVM), SmartPlant 3D / SP3D, Revit (RVT), AutoCAD Plant 3D (DWG), SolidWorks, CATIA and IFC — and merges multi-discipline files into one combined model. - **Collision / clash inspection** — Define clash rules across pipelines, equipment and building structures and run automated collision checks to surface interferences early. - **Camera Sync to design software** — Synchronises the eZWalker viewpoint with SP3D or PDMS so a reviewer can instantly relocate a flagged issue inside the native design tool. - **Ergonomic inspection** — An embedded ergonomics module with 22 international-standard human models checks operator access, reach and maintainability against recognised standards. - **Animation, VR and model comparison** — Creates parameter-driven animations (equipment joints, trajectory paths, color/transparency transitions), supports VR and 3D-glasses roaming modes, and compares two model versions side-by-side under a single license. - **High-Performance Model Visualization** — Render large-scale plant models in real time with an in-house XRE rendering core and model-lightweighting that compresses files up to ~70x. Navigate refinery, power plant, and process facility models smoothly from a ~100 MB install. - **Clash and Interference Review** — Identify and review clashes between piping, equipment, structures, and HVAC systems during design review walkthroughs before physical construction begins. - **Construction Sequence Planning** — Simulate construction phasing and equipment erection sequences in 3D to plan lift studies, access sequences, and module installation strategies. - **Maintenance Access Analysis** — Verify equipment maintenance access paths, clearances, and operator walkways against maintenance requirements before design is finalized. - **Measurement and Annotation** — 3D measurement tools and annotation capabilities for capturing design review comments, dimensional queries, and spool isometric reference within the plant model. - **Model Version Comparison** — Open two model versions in separate windows under a single license to track revisions. ## Applications - **EPC and multi-discipline design review** — EPC contractors and owner teams hold collaborative review meetings on a combined process, piping, structural, electrical and HVAC model. - **Constructability and clash resolution** — Walk the model to evaluate access routes, equipment clearances and pipe routing, and run collision checks to resolve interferences. - **Construction simulation and sequence planning** — Use parameter-driven animation to simulate construction phasing, module erection and lift sequences for planning and stakeholder communication. - **Operations, maintenance and training visualization** — Give operators and maintenance engineers a navigable digital plant for maintenance-access checks, ergonomic verification and operation/maintenance training using the as-designed 3D model. - **Mobile / on-site review** — Reviewers carry the model into the field on iOS or Android tablets to cross-check the design against site conditions. ## In depth ### Why do EPC and plant teams need a dedicated review tool alongside PDMS, SP3D or Revit? Because letting every reviewer work inside the native design tool means buying a CAD seat for people whose job is to review rather than author — eZWalker instead gives the whole project team one lightweight, multi-discipline model they can walk through and mark up without a CAD license. Industrial plant projects run process, piping, structural, electrical and HVAC design across several different platforms — AVEVA PDMS, SmartPlant 3D, Autodesk Revit, AutoCAD Plant 3D, SolidWorks and CATIA among them. Reviewing the combined result has traditionally meant assembling every reviewer around whoever holds the right CAD license for that particular model, or leaving operators, maintenance engineers and site supervisors without real access to the 3D design until construction is well underway. eZWalker removes that bottleneck by reading the finished models from each platform and merging them into one combined, lightweight scene that the whole project team — including EPC stakeholders, operators, maintenance engineers and site supervisors — can navigate and review together without holding an individual CAD license. Because it only reviews rather than authors 3D geometry, eZWalker performs no code-based structural design or verification and carries no design-code certification of its own; its role is to surface clashes, access problems and constructability issues in the combined model early enough that the discovery happens during review, not on site. ### How does a plant model review actually work in eZWalker? A reviewer imports and merges models from each source platform into a single lightweight scene, then walks it in real time while automated clash rules, ergonomic checks and markup tools surface issues as they're found. A review starts by importing models from PDMS, SmartPlant 3D, Revit, AutoCAD Plant 3D, SolidWorks, CATIA and IFC into eZWalker, where model-lightweighting compresses the combined scene while preserving data integrity so it can be navigated in real time from an install of only around 100 MB. Reviewers then move through the merged model in first-person, checking access routes, equipment clearances and pipe routing, while automated collision rules flag interferences between piping, equipment, structure and HVAC as they walk. Flagged issues are logged as markup and annotations directly inside the 3D scene, and Camera Sync jumps straight back to that exact location inside SP3D or PDMS so the design team can make the correction. An ergonomic inspection module with 22 international-standard human models checks operator reach and access, VR and 3D-glasses roaming modes support immersive walkthroughs, and native iOS and Android apps carry the same review out to the plant floor. Once a model is revised, a two-window model-comparison mode under a single license confirms that the flagged issues were actually resolved. ## Questions ### What is eZWalker used for? eZWalker (eZWalker Review) is a 3D model visualization and review platform for industrial plants and buildings. Teams use it for model walkthroughs, design and constructability review, collision/clash inspection, ergonomic checks, construction simulation, and operations and maintenance visualization — across refineries, petrochemical and power plants, process facilities and BIM projects. ### Who develops eZWalker? eZWalker is developed by Beijing DMS Co., Ltd. (DMS / Beijing Dameisheng Software), a Chinese engineering-software company founded in 2009. The product is part of DMS's plant/BIM visualization ecosystem alongside its PIMCenter and BIMCenter platforms. ### Is eZWalker a CAD design tool or a structural design program? Neither. eZWalker is a visualization, walkthrough and review viewer — it reads finished 3D models from CAD/plant-design tools for review and collaboration. It does not author CAD geometry and does not perform code-based structural design or verification, so it carries no design-code certification of its own. ### What 3D model formats and design software does eZWalker support? eZWalker reads models from major plant and BIM platforms including AVEVA PDMS (RVM), SmartPlant 3D / SP3D, Autodesk Revit (RVT), AutoCAD Plant 3D (DWG), SolidWorks, CATIA and IFC, and can merge multi-discipline, multi-software files into a single combined model. It can also preview common document and media formats (PDF, Office, images, video) within the review environment. ### Do operators and site teams need a CAD license to use eZWalker? No. eZWalker is a lightweight reviewer designed so operators, maintenance engineers, site supervisors and project stakeholders can navigate and review the 3D model without holding an individual CAD license. ### Can eZWalker handle very large plant models? Yes. Its in-house rendering core plus model-lightweighting technology compresses original model files up to about 70x while keeping data integrity, and the full installer is only around 100 MB — so large refinery, LNG and process-plant scenes can be roamed in real time. ### Does eZWalker do clash detection? Yes. You can set collision rules across pipelines, equipment and building structures and run automated clash/collision checks to find interferences during review, before fabrication and construction start. ### What is the Camera Sync feature? Camera Sync synchronises the eZWalker viewpoint with SP3D or PDMS, so when a reviewer flags an issue they can jump directly to that exact location inside the native design software to make the correction — closing the review-to-redline loop quickly. ### Does eZWalker support ergonomic / maintenance-access checks? Yes. It includes an ergonomic inspection module with 22 international-standard human models to verify operator access, reach and maintainability, helping catch on-site usability and maintenance-access issues early. ### Does eZWalker run on mobile or support VR? Yes. In addition to Windows PC, eZWalker has native iOS and Android apps for on-site and tablet review, and it supports VR and 3D-glasses roaming modes as well as parameter-driven animation for construction simulation. ### Can eZWalker compare two versions of a model? Yes. A model-comparison mode lets you open two model versions in separate windows under a single license to track changes and confirm that previously flagged issues have been resolved. ### Is eZWalker available in India through RAM CADDSYS? Yes. RAM CADDSYS distributes eZWalker Review in India for industrial plant and BIM engineering teams, providing software licensing, training and technical support. Contact RAM CADDSYS for a demo, a trial and India pricing. --- Full page: https://www.ramcadds.com/products/ezwalker Pricing is quoted per territory and is deliberately not published. Talk to us: https://www.ramcadds.com/contact