01 / Finned tubes
Tube preparation and ordered bundles
Fin continuity, bare-end requirements and handling points are reviewed against the intended assembly route.
Finned tubes to finished equipment
Finned-tube heat exchangers, engineered to be built.
The customer owns thermal duty, heat-transfer design, overall geometry and required interfaces. StelTherm owns manufacturing engineering: buildability review, fabrication detailing, finned-tube preparation, welded integration and agreed inspection.
Complete-unit illustration / ST2-58
Articles / Complete index
Read every guide in a stable order.
7 articles, organized for a quick first answer and a deeper technical handoff.
01 / Customer defines
Duty, thermal design, envelope and interfaces
Your design package establishes what the equipment must do and where it must connect.
02 / StelTherm makes buildable
DFM, fabrication detail, sequence and verification
We turn the agreed design into a practical route for producing, joining and checking the equipment.
01 / Manufacturing handoff
Design intent becomes a fabrication plan
We review access, datums, joining order, distortion risk, handling and inspection before the design is released to the floor.
Agreed output
Redlines, fabrication details, sequence decisions and quotation assumptions aligned to the customer's design authority.
02 / Core manufacture
Four connected capabilities, one finished assembly
Finned tubes are the starting point. Connections, support structure and controlled assembly turn them into saleable equipment.
02 / Connections
Headers, nozzles and flanges
Interfaces are detailed around access, fit-up, weld order and the customer's required connection geometry.
03 / Structure
Frames, skids and supports
The structure is coordinated with equipment datums, joining access, handling and installation interfaces.
04 / Integration
Fit-up, welding and assembly
Components are brought together in an agreed sequence that preserves access and supports final verification.
03 / DFM decisions
Designed on screen. Resolved for the floor.
A valid thermal design can still be difficult to fixture, weld, inspect or align. Our review focuses on the decisions that determine whether the agreed design can be made consistently.
- Weld and tool access around adjacent components
- Practical datums and tolerances for the chosen process
- Sequence choices that reduce distortion and blocked access
- Inspection access to the interfaces that matter
04 / Build sequence
Review, detail, make, join, verify, protect
No universal route is imposed. The sequence is agreed around the actual exchanger geometry and manufacturing constraints.
- 01
Review
Confirm design responsibility, interfaces and open manufacturing questions.
- 02
Detail
Resolve datums, fit-up, access, sequence and agreed inspection points.
- 03
Manufacture
Prepare finned tubes, connections, frame parts and associated components.
- 04
Integrate
Fixture, fit and weld components in the planned order.
- 05
Verify
Check agreed dimensions, interfaces and visible manufacturing records.
- 06
Protect
Support and protect the finished assembly for the agreed delivery state.
05 / Manufacturing framework
Keep every visual state connected to an owned decision
The images now sit beside the stages they explain. This framework records the inputs, review questions, manufacturing constraints and handoff basis that connect those visible states.
Customer input
Provide the current controlled drawings, customer-owned thermal duty and geometry, interface schedule, requested materials, quantity, project requirements and the condition expected at delivery.
Identify revision status and mark which dimensions, faces, openings and support locations are fixed. If the package is preliminary, state what remains open so a manufacturing proposal is not mistaken for an approved design change.
StelTherm review
We map the proposed scope from selected or supplied finned tubes through connections, frame integration, joining access, staged checks and protection, then return questions tied to the affected drawing or interface.
Each question includes the manufacturing reason, the downstream consequence and the decision owner. The review distinguishes information needed for quotation from detail that can be resolved only after an order-specific drawing exchange.
Manufacturing issue
Separate components compete for the same access, reference features and handling space. The fabrication route resolves sequence and restraint before a later operation hides the feature that still needs control.
Useful checkpoints occur while adjustment is still possible: before tube ends enter a connection, before the bundle closes the frame, after joining affects a datum and before covers or restraints hide an interface.
Agreed output
The quotation and review record define what is supplied, prepared, fabricated, assembled, checked, documented, protected or excluded. Customer-controlled requirements remain governed by the approved drawings.
The final handoff follows that same basis. It identifies the assembly condition, open or protected interfaces, selected records and any loose items without implying a universal test package, certification or guaranteed thermal result.
All configurations and process views on this page are illustrative. They support a drawing-led discussion about buildability; they do not represent a catalogue model, a customer project, an actual StelTherm facility or a promise that every shown process is included in every order.
Before a route is accepted, each transition should name the controlling input, the feature that must remain available, the manufacturing question and the person authorized to approve a change. That record follows the work from quotation into fabrication detail, temporary support, assembly sequence, selected checks and final protection. If a drawing revision changes an interface or delivery state, reopen the affected decisions instead of carrying an earlier assumption forward. This keeps the finished unit connected to the current customer basis without transferring thermal design or equipment-selection responsibility.
06 / Assembly configurations
Equipment, not a loose parts catalogue
Reference configurations show how finned tubes, connections and support structures become integrated exchanger assemblies.
Framed coil module
Compact interfaces, visible structure
A reference route for coordinating tube banks, side headers, connection positions and a stable mounting frame.
Skid assembly
Multiple banks, one handling unit
A reference route for integrating tube banks, manifold connections, access space and a transportable support structure.
07 / Start the review
Bring the design. We will work through how to build it.
Share the exchanger type, design status, required interfaces and governing requirements. Drawings can follow by email after the initial inquiry.
