This guide helps buyers prepare questions for the supplier and responsible technical reviewer. It is a procurement record framework, not a test procedure, installation guide or approval of a particular strut. The applicable product information and application requirements must define how the assessment is performed and judged.
Define the behavior the application needs
Start with a clear description of the requested motion near the end position. Ask whether the concern is extension speed, an abrupt approach, a hold function or another stated requirement. Avoid putting several different expectations into the single word smooth without explaining what the reviewer should evaluate.
Identify the actual application and the relevant operating state. A requirement for one cover or vehicle arrangement should not be silently transferred to another. Keep the requested function tied to the agreed application information and the technical document that defines it.
Ask the responsible parties to clarify acceptance wording before reviewing the sample. If the purchase requires a measured criterion, obtain its source and assessment method. This article supplies no universal speed, damping distance, force tolerance or acceptable end-position impact limit.
Separate speed, damping and locking claims
The Stabilus gas springs and dampers brochure discusses extension-speed characteristics and different damping arrangements. It also presents variants with holding or end-position locking functions. These are manufacturer design examples, not evidence that a MAKEXCAR reference includes any of those features.
Use that distinction to ask which function the offered item actually declares. A supplier describing a damped approach should explain the applicable documentation rather than leave the buyer to infer a locking function. A statement about holding should likewise not be rewritten as a measured speed characteristic.
Ask whether the claim applies throughout movement or only within a stated region, and where that scope is documented. Keep the manufacturer's actual terminology with the quotation. Similar-looking pressure tubes do not establish identical internal designs or motion behavior.
Identify the sample and its declared configuration
Record the supplier reference, sample identity and relevant drawing or specification revision. Keep any force marking, length information and end-fitting description as separate declared fields. A visible marking can help identify the supplied sample but does not independently prove its suitability for the application.
If the supplier proposes a variant or substitution, ask what differs from the original request. Preserve the references for both versions and the explanation of their declared functions. An unchanged product-family name should not hide a change in the configuration under review.
Keep the sample and accompanying documents linked throughout evaluation. If photographs or video are provided, identify which sample they show. A clip of another reference should not become the evidence for accepting the item on the current order line.
Agree the assessment setup with the technical reviewer
The responsible reviewer should define the setup needed to represent the requested application. Purchasing can collect the setup description, but it should not improvise fixtures, loads or mounting arrangements from a generic illustration. Preserve the actual method and its document identity.
Ask which operating conditions need to be recorded for a meaningful comparison. Depending on the applicable plan, these may include the configuration, temperature information, load description or movement conditions. Include only fields relevant to the agreed assessment rather than inventing a universal laboratory schedule.
Where the proposed assessment differs from the intended application, request the reviewer's explanation of what the observation can support. A convenient demonstration may answer a limited question without establishing performance in the final assembly. Keep those limits visible in the sample record.
Preserve orientation and condition information
Ask the supplier whether the declared damping behavior depends on the specified arrangement and where that information is documented. Stabilus describes different damping designs in its brochure; this supports requesting the offered item's own explanation, not applying another manufacturer's arrangement to every gas strut.
Record the actual sample condition before the agreed review. Note any reported transport damage, changed fitting or other difference from the declared sample. Use the normal receiving process to resolve discrepancies before interpreting the motion as representative of the requested item.
Do not correct or alter a sample simply to produce a more convincing demonstration. Any change relevant to the evaluation should be identified and reviewed through the actual plan. The record should show what was assessed rather than presenting a modified sample as the original supply.
Use an end-of-travel review worksheet
Use a record that connects the requested behavior to the offered sample and the reviewer's actual assessment. The editorial worksheet below explains why a gap matters and what to request. It does not define a fixture, test method or acceptable motion limit; those must come from the applicable technical plan.
| Review input | Why it matters | Request if unresolved |
|---|---|---|
| Requested function and declaration | “Smooth” can hide different expectations about speed, damping, holding or locking. | The actual requirement and offered feature description, with document and applicable region. |
| Sample/configuration | A clip of another reference cannot support acceptance of the current offer. | Sample identifier, offered reference, revision and relevant declared fields. |
| Setup and conditions | A convenient demonstration may not represent the intended application. | The agreed assessment arrangement, relevant conditions and reviewer explanation of its scope. |
| Observation and original record | Playback changes or missing context can alter how movement appears. | Original linked record, observed/measured result and any editing notes. |
| Criterion and decision | An observation is not approval without its acceptance basis. | Defined requirement, actual reviewer conclusion and outstanding question. |
| Change and applicability | A revised sample or setup may not inherit the earlier decision. | Changes identified against the earlier record and the current configuration covered. |
Keep the observation separate from the conclusion. “The approach appeared gradual” describes what someone saw under stated conditions. The reviewer still needs the agreed requirement and evidence to decide what that observation supports. If the acceptance wording was never defined, ask for clarification rather than turning the comment into a retrospective performance criterion.
Make video evidence traceable and comparable
If video is part of the agreed evidence, retain enough context to identify the sample and assessment. Record who produced it and which setup or review record it accompanies. An isolated close-up can lose the information needed to interpret what happened near the end position.
Preserve the original clip when available and identify any edited presentation copy. A change in playback speed should not be mistaken for the actual movement speed. Where the plan requires measurements, request the relevant measured record instead of estimating a value from an informal promotional clip.
Use descriptive comments that match the evidence. A buyer can ask why an observed approach differs from the supplier's declaration without declaring the internal cause. The supplier and technical reviewer need the original context to decide what further explanation or assessment is required.
Compare samples under the agreed basis
Before comparing two samples, identify their references and declared functions. Ask whether the assessment conditions are equivalent for the question being reviewed. Similar dimensions or the same nominal force marking alone do not establish that the samples are intended to provide the same motion profile.
Keep each result connected to its own conditions and source record. If one sample is demonstrated in a different arrangement, record that difference rather than ranking the samples from the videos alone. The responsible reviewer should determine which comparisons are meaningful.
Request an explanation when a proposed replacement changes the declared behavior. The purchasing decision should reflect the actual requirement and evidence, not a preference for whichever clip looks slower. An appearance of slower motion is not a universal indicator of better suitability.
Record deviations and the scope of sample approval
If the observation differs from the agreed expectation, name the affected requirement and retain the evidence. Ask for the supplier's response and the proposed next step. Do not replace the original criterion with a less specific description just to close the sample review.
A revised sample needs its own identity and an explanation of relevant changes. If another review is agreed, keep both records available and identify which conclusion applies to the offered production configuration. A later result should not erase the earlier difference from the file.
State exactly what an approval covers. Acceptance of a particular motion review does not independently prove service life, all-temperature performance, vehicle fitment or every production item's behavior. Keep any additional requirements linked to their own applicable evidence.
Common questions about end-of-travel behavior
The force marking is supplied without a motion declaration
In a hypothetical quote, a sample has a readable force marking but the offer gives no description of its damping or end-position function. Keep the marking as an identification field and ask for the applicable feature document. Do not infer locking from a slow-looking approach or compare the sample as though its motion profile had already been specified. The missing declaration is the first question to resolve.
The edited video changes how the movement appears
Consider an invented presentation copy showing a ten-second original clip segment in five seconds at twice the playback rate. The arithmetic is 10 divided by 2 equals 5 seconds of presentation time; these are hypothetical media-editing inputs, not measured gas-strut travel times or speed results. The example explains why the reviewer needs the original clip and playback notes, not a performance threshold.
Request the sample identity, setup record and original media tied to the actual assessment. If the plan requires motion measurements, obtain those results by its defined method. Do not estimate a damping profile from this editing example or use a promotional clip to substitute for the agreed acceptance evidence.
A different setup is used for the replacement sample
Suppose a hypothetical revised sample is filmed in a different arrangement from the first. Identify the references, revision and changed setup, then ask the responsible reviewer whether the records can answer the same question. Retain each observation with its conditions. A clip that appears slower is not enough to rank suitability or explain the internal cause of the difference.
These situations expose documentation gaps, not performed tests or customer incidents. They lead to a feature request, an original-record request or an applicability review. None authorizes a universal damping distance, load, test duration or installation orientation for an unspecified gas strut.
Prepare a function-specific gas strut inquiry
Use this brief to connect the supplier reply with the actual review question. Brackets are inputs from the applicable record, not a test instruction.
Application and function: [arrangement under review, requested end-of-travel behavior and applicable requirement].
Offered sample: [reference, sample identifier, specification revision and declared motion feature].
Assessment context: [agreed plan/setup, relevant conditions and any difference from the application].
Evidence: [original observation/report/video, playback/edit notes and missing result].
Decision request: [quantity, acceptance basis, reviewer and outstanding question before approval].
Review the current MAKEXCAR gas strut category and identify the recorded reference you want to discuss. Send the application information, requested function, quantity and relevant supplier or sample documents.
Use the MAKEXCAR contact page to request the declared motion scope and sample-review information. Keep the setup, conditions, observation and acceptance basis together so the supplier and technical reviewer can answer the same defined question.
