Energy-class selection
The 25kJ and 35kJ labels identify an energy-class discussion, not a standalone promise of treatment depth, productivity or acceptance. A useful comparison connects the requested class to roller geometry, complete-set configuration, tow tractor, work area, material condition, access and the project verification route.
Use this page to prepare a model-selection conversation with CMG. Final values must be taken from the source-matched model specification and the project engineering process, especially where the buyer is comparing different manufacturers or complete-set scopes.
Discuss this requirement
Guide contents
Describe the material, moisture condition, fill or layer arrangement, treatment area, access, turning space and work that follows. If the ground is variable, saturated, unstable or restricted, record those conditions instead of treating energy class as the first or only decision.
Review the impact roller, tow tractor, damping arrangement, tyres, monitoring route and support equipment together. A 35kJ roller with an undefined tow or route is not a comparable offer to a documented 25kJ complete set.
Three-sided and five-sided geometry can change the operating discussion, transport arrangement and work-zone planning. Confirm working width, turning space, route, gradient and exclusion controls from the proposed configuration rather than from a generic class label.
Ask for the model specification, configuration drawing, operating and maintenance information, interface requirements, transport data, spare-parts identification and any approved monitoring or verification material relevant to the offer.
Energy class can be one input to a method discussion, but field acceptance depends on the project specification and responsible testing or engineering process. Record trial, monitoring or testing requirements before mobilisation instead of promising a universal result.
Decision record
A review of 25kJ 35kJ impact roller selection should identify the source of each project input, the party responsible for confirming it and the point in the programme when it becomes fixed. Material descriptions, equipment interfaces, access assumptions and requested documents should not be silently converted into supplier guarantees. Record open items so procurement can distinguish a preliminary discussion from an approved configuration.
Use the checklist on this page as a handover between the site, engineering, logistics and purchasing teams. When an input changes, return the change to the relevant decision owner and assess its effect on configuration, operating controls, delivery scope and verification. This creates a traceable route from the original search question to a quotation that can be compared and reviewed.
Before order placement, reconcile the proposed equipment, accessories, exclusions, documents and delivery responsibilities in one schedule. After delivery, use the approved supplied documents for inspection and operation. The website supports selection and communication, but it does not replace the contract, operating manual, site method statement or project acceptance specification for 25kJ vs 35kJ Impact Roller Selection Guide.
Engineering boundaries
Buyer checklist
Related equipment
High-energy polygonal roller for demanding subgrade and ground improvement projects.
Explore
A high-energy impact roller for embankment, subgrade and foundation treatment.
Explore
Balanced high-energy compaction for road base, fill and infrastructure construction.
ExploreBuyer FAQ
No. Energy class must be reviewed against the material, work area, access, complete-set configuration and project verification requirements.
No. It is one equipment input and does not replace project-specific design, trials or acceptance evidence.
Compare the exact model, geometry, tow system, damping, accessories, documents, delivery scope and exclusions.
A preliminary discussion is possible, but a responsible recommendation requires the project and equipment inputs listed on this page.
