A DAC150 Dynamic Axial Compression Column is a preparative chromatography column designed to support controlled packing and separation of process-scale materials. The “150” in the model name may refer to a nominal column diameter of 150 mm, but buyers should confirm the actual bore, usable bed dimensions, and configuration with the manufacturer rather than treating the model code as a complete specification. To select a suitable system, match the column to your resin, target throughput, operating pressure, cleaning requirements, and process equipment. This guide explains what to confirm before requesting a quotation from XINSHENG.
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This guide is intended for process engineers, procurement teams, and project managers evaluating a DAC150 for chemical, pharmaceutical, or other industrial separation processes. It is especially useful when you have an established resin or process requirement but need to translate it into a supplier-ready technical specification. If you are still developing the process, treat the selection details as questions to resolve with your process and equipment teams. Final specifications should be based on the application and confirmed with the equipment supplier.
A dynamic axial compression column uses an adjustable axial mechanism to apply compression to the packed bed. The intent is to help establish or maintain a suitable bed condition during packing and operation, depending on the machine’s design and operating procedure. This differs from selecting a column based only on vessel volume: the compression mechanism, distributor design, sealing arrangement, and control method can all affect suitability. Ask the manufacturer to explain how compression is applied, monitored, and adjusted on the proposed configuration.
Potential applications include process chromatography where a buyer needs a larger bed than a laboratory column can provide. The actual suitability depends on the separation method, resin characteristics, product compatibility, cleaning strategy, and required production capacity. A nominally similar column can behave differently when its bed height, distributor, or operating conditions change. Confirm performance expectations through process-specific evaluation rather than relying on the model name alone.
Start by requesting a complete specification sheet and a dimensioned general arrangement drawing. The drawing should identify the internal diameter, usable bed height, overall height, connection locations, and any required installation clearances. Confirm whether quoted dimensions refer to the vessel, packed bed, or maximum operating configuration. This prevents misunderstandings between a nominal model designation and the usable process dimensions.
| Specification area | What to confirm | Why it matters |
|---|---|---|
| Column geometry | Internal diameter, usable bed height, and vessel dimensions | Supports capacity estimates and facility layout checks |
| Operating envelope | Permitted pressure, flow range, temperature limits, and process connections | Helps establish compatibility with the process and upstream equipment |
| Wetted construction | Material grades, surface finish, seals, and distributor materials | Allows compatibility and cleaning requirements to be reviewed |
| Compression and control | Actuation method, adjustment range, control interface, and operating procedure | Clarifies how bed compression is managed in practice |
| Supply scope | Included accessories, drawings, manuals, testing documents, and service options | Reduces gaps between the equipment quote and project needs |
If the confirmed internal diameter is 150 mm, the column’s cross-sectional area is approximately 0.0177 m². As a geometry-based illustration only, a flow of 1.0 L/min through that area corresponds to a superficial velocity of about 3.4 m/h. These figures are calculated from the stated assumptions and are not DAC150 performance ratings or operating recommendations. Actual flow selection must account for the resin, bed height, pressure limits, process method, and supplier-confirmed design.
Describe what the column will separate and how it will be used, including batch or continuous duty where relevant. Provide the target throughput, cycle expectations, and the operating fluids or buffers that may contact the equipment. Identify any process stages that impose the most demanding pressure, temperature, or cleaning conditions. A clear duty statement helps suppliers assess configuration needs before they quote.
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Provide the resin type, particle characteristics if available, and recommended packing or operating conditions from its supplier. State the desired bed height and whether it is fixed or still under development. Ask how the proposed compression system accommodates the selected resin and bed configuration. Do not assume that the same column settings suit every resin or process.
List all process-contact fluids and any known compatibility requirements. Ask for the proposed materials of construction, seal materials, and available surface-finish information where relevant to your process. Explain your cleaning and changeover approach, including any site-specific procedures that the equipment must accommodate. Have your quality, engineering, and validation teams review the evidence required for their intended use.
Compare the column’s connections and utilities with your existing process equipment and plant layout. Confirm lifting, access, service clearance, control connections, and any required support structure with the supplier. Request a drawing early enough to review it with the installation team. This step can expose integration issues before purchase rather than during commissioning.
DAC150 pricing depends on the final configuration, materials, controls, accessories, documentation, and requested services. A model name alone is not enough to establish a comparable price because suppliers may include different items in their base scope. MOQ and lead time should also be confirmed directly in the quotation; do not assume that a standard delivery schedule or minimum order applies to a configured process column. Ask for the quotation validity period, payment terms, delivery basis, and a clear list of exclusions.
For a meaningful comparison, request suppliers to quote against the same specification and scope. Separate base equipment from optional items such as additional instrumentation, installation support, or process-specific documentation. Ask whether the stated lead time begins after technical approval, deposit, or another project milestone. These details make procurement planning more reliable without relying on unsupported market averages.
At XINSHENG, we recommend sending the process duty and interface requirements together with your request for quotation. This gives our team a basis to clarify the DAC150 configuration and identify specification points that still need confirmation. Where a requirement depends on your resin or site conditions, document the assumption and review it with your process and engineering stakeholders. A clear technical scope supports a more useful supplier comparison.
A DAC150 can be evaluated effectively when its actual dimensions and operating limits are confirmed against the process, rather than inferred from the model designation. Before purchase, define the resin and bed requirements, pressure and flow needs, materials, cleaning approach, installation interfaces, and documentation scope. The 150 mm example in this guide is an assumption for illustration, not a substitute for a manufacturer’s drawing or product specification. Contact XINSHENG with your application details and request a written configuration, quotation, and list of open technical questions to guide your next decision.
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