Hengda NB aluminium brazing line

The original page describes continuous brazing under nitrogen with non-corrosive flux, for automotive aluminium intercoolers, radiators, air-conditioning condensers, evaporators, heater cores and oil coolers. [1] It does not identify a construction-machine part number or qualify any alloy/joint design for your equipment.

Hengda’s listed furnace manufacturing scope supports an enquiry for upstream processing equipment. [2] It does not establish that the catalogue includes the entire pretreatment, assembly, testing and cooler-production system.

All twelve rows list 380 V, three phase and 750°C rated temperature. [1] The source labels the paired dimensions simply “working size”; it does not explicitly define usable belt width, height allowance or fixture clearance. Obtain a section drawing and confirm which dimensions control passage.

The same page offers other brazing-section lengths according to output requirements. That wording does not give a parts-per-hour guarantee. Before choosing a row, ask for a loading drawing showing fixtures and spacing, plus the proposed belt speed and cycle for your parts.

Process consumption is also unresolved. No reviewed source gives nitrogen flow, cooling-water requirement, start-up consumption, cycle-specific energy or output. Cost comparison needs the same assembly, loading pattern and production rate on each offer. A wider line with the same catalogue length is not automatically cheaper per acceptable part.

Do not set the workpiece cycle from the furnace’s maximum/rated temperature. Agree the required thermal history for the actual assembly and materials, then have the supplier show that the proposed loaded line can deliver it. This page does not supply an operating recipe.

General aluminium-brazing guidance explains that incoming products, the belt and entry/exit conditions can introduce moisture and oxygen, so supply-gas purity alone does not establish the atmosphere at the joint. It recommends measurements in the critical brazing zone. [3] This source is not a test of Hengda equipment; have the process engineer define sampling points and acceptance conditions for your trial.

1. Freeze trial inputs: identify parts, alloy/filler/flux, fixtures and loading arrangement.
2. Record process evidence: agree loaded-part temperatures, belt condition/speed and atmosphere readings, including instrument records.
3. Inspect traceable parts: link inspection results to the identified run and agreed acceptance method.
4. Resolve variation: define repeat-run checks, corrections and the acceptance authority before release.

No reviewed data establishes this line’s temperature uniformity, guaranteed yield or a qualified construction-machine cooler process. Ask for test evidence against your specification, rather than substituting a different customer’s headline result.

• Preparation and handling: identify cleaning, flux application, drying, fixtures and loading equipment included or buyer-supplied.
• Utilities and controls: list nitrogen supply, connection points, measurement equipment, control records and destination electrical configuration.
• Project support: agree transport packaging, unloading, installation, commissioning, training and spare-part scope.
• Acceptance and changes: specify factory/site trials, sample supply, correction ownership and when payment milestones are earned.

Price, MOQ, current delivery date, warranty terms, export compliance and local service coverage are not established by the catalogue. Request a dated offer for an identified configuration and destination; keep every exclusion visible.