Source Confirmed
Seller-confirmed
- DV-502A cabinet, manual controls, screened chamber/guard assembly, and substantially assembled exterior
Analysis snapshotSnapshot decision:REVIEW
Denton Vacuum DV-502A Thermal Evaporator-Centered Mixed Lab Lot — GSA Auction Analysis
A photo-confirmed Denton Vacuum DV-502A is present in a mixed lot, but vacuum stack, source, gauges, chamber, cooling, function, age, and other equipment identities are unestablished, leaving a $0 blind hammer ceiling.
Stale-data warning
Analysis snapshot · Open at observation — observed October 3, 2026. This is an immutable observation, not a live feed. The auction is scheduled to close October 9, 2026. Price, status, close time, and terms may have changed. Check the source auction before bidding.
Decision at a glance
RecommendationREVIEW
- Maximum hammer bid
- $0
The auction bid ceiling supported by this analysis, if one is defensible; see costs below for buyer-premium treatment.
Why this decision
REVIEW: The $4,650 blind non-acquisition cost stack exceeds net resale before hammer.
What to verify before bidding
- Material configuration and functional verification remain unresolved.
See costs and maximum bid for the displayed assumptions and buyer-premium treatment.
- Snapshot auction result
- Not captured
- Bidders
- Not captured
- Blind-model resale
- $4,500
Snapshot provenance and timing · observed Oct 3, 2026, 6:17 AM UTC · scheduled close October 9, 2026
GSA Auctions sale 1-1-QSC-I-27-001, lot 014 · Gaithersburg, Maryland 20899
Snapshot observed Oct 3, 2026, 6:17 AM UTC
Scheduled close October 9, 2026
Analysis prepared Oct 3, 2026, 6:17 AM UTC
Published October 3, 2026 · page updated October 3, 2026
Prepared and published by Oleksii Udod for LotCaliper.
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These are individually prepared, time-stamped analyses with recorded scheduled closes. Verify the official auction before acting.
Auction snapshot
This page preserves the October 3, 2026 GSA pre-close observation for item 379033, sale 1-1-QSC-I-27-001, lot 014. No numeric current bid or bidder count was established.
A photo-confirmed Denton Vacuum DV-502A is present in a mixed lot, but vacuum stack, source, gauges, chamber, cooling, function, age, and other equipment identities are unestablished, leaving a $0 blind hammer ceiling.
Review and correction history
Independent review not required. No corrections recorded.
View review and correction details
Independent review not required
No mandatory independent review was required under the current gate. This is not an approval.
How independent review worksHow evidence is classified
Seller facts, photo-derived observations, manufacturer context, unknowns, and LotCaliper assumptions remain explicitly separated.
Photo Derived
Photo-derived
- Supplied photos support the stated physical identity/configuration observations only; they do not prove inclusion or function.
Not Established
Not established
- Roughing/high-vacuum pumps, source hardware, thickness monitor, chamber/seal integrity, gauges, rotation, cooling-water path, age, power-on, vacuum/deposition performance, and other lot equipment identity
Lotcaliper Assumption
LotCaliper assumptions
- $4500 conservative post-verification resale and $0 blind/as-is hammer before any unknown buyer premium.
Structured photo observations (1)
These are bounded observations from the preserved photographs. They do not establish functional operation or seller inclusion beyond the corresponding source evidence.
Model · Confirmed
DV-502A thermal evaporation system
Photo confidence: High
Equipment identity
Laboratory · quantity 1
Denton Vacuum DV-502A thermal evaporation system
Identity confidence: High
Identity evidence
A supplied auction photo directly shows the Denton Vacuum DV-502A front-panel marking.
GSA Auctions · Image · observed Oct 3, 2026, 6:17 AM UTC
Configuration
DV-502A cabinet, manual controls, screened chamber/guard assembly, and substantially assembled exterior
Confirmed · Medium High confidence
Configuration evidence
Supplied photos support the stated physical identity/configuration observations only; they do not prove inclusion or function.
GSA Auctions · Image · observed Oct 3, 2026, 6:17 AM UTC
Roughing/high-vacuum pumps, source hardware, thickness monitor, chamber/seal integrity, gauges, rotation, cooling-water path, age, power-on, vacuum/deposition performance, and other lot equipment identity
Not established · no source evidence establishes presence or absence
Configuration evidence
Roughing/high-vacuum pumps, source hardware, thickness monitor, chamber/seal integrity, gauges, rotation, cooling-water path, age, power-on, vacuum/deposition performance, and other lot equipment identity
GSA Auctions · Image · observed Oct 3, 2026, 6:17 AM UTC
Condition
Seller Reported Operational
Seller states the mixed-lot items are usable; this is a seller assertion only and does not establish high-vacuum or deposition performance.
Evidence confidence: Low Medium
Condition evidence
Seller states the lot items are in usable condition.
GSA Auctions · Text · observed Oct 3, 2026, 6:17 AM UTC
Untested
No power-on, pump-down, achieved vacuum, deposition, gauge, cooling-water, or leak-test evidence is retained.
Evidence confidence: High
Condition evidence
Supplied photos show no powered display, gauge response, active pump state, or application-level test.
GSA Auctions · Image · observed Oct 3, 2026, 6:17 AM UTC
Market evidence
Market evidence strength
Medium
Public auditability
Full
Evidence recency
Current
Exact-model records are a materially stronger $15,000 dealer ask, a $3,350 high-vacuum-untested marketplace ask, and a sold archive with only a $169.99 last listed price, not a verified transaction amount.
| Model match | Evidence type | Treatment | Count |
|---|---|---|---|
| Exact Model | Asking | Context Only | 2 |
| Exact Model | Ended Non Realized | Context Only | 1 |
| Source | Evidence | Observed | Price | Relevance and treatment |
|---|---|---|---|---|
| Bid Service Denton Vacuum DV-502A Dealer | Asking Exact Model | October 3, 2026 | $15,000 | Configured dual-source, monitored, turbo-pump dealer unit. Context Only |
| eBay Denton DV502A item 236776599352 Marketplace | Asking Exact Model | October 3, 2026 | $3,350 | Manual-valve exact model that powers on but lacks high-vacuum testing. Context Only |
| HGR Denton DV-502A inventory 0625-053-0137 Dealer | Ended Non Realized Exact Model | October 3, 2026 | $169.99 | Sold archive; last listed price is not an established transaction amount. Context Only |
Sensitivity and robustness
Requires Verification
The scenarios show potentially workable economics, but the stated verification gate must be resolved before bidding responsibly.
Blind/as-is downside
- Max hammer
- $0
- Gross resale model
- $3,500–$4,500
The $4,650 blind non-acquisition cost stack exceeds net resale before hammer.
Vacuum and deposition-critical hardware pass
- Max hammer
- $700
- Gross resale model
- $4,500
The approximately $700 ceiling applies only after the stated vacuum, pump, source, gauge, chamber, and cooling verification gate.
Costs and maximum bid
| Transaction / operating cost | Amount | Basis |
|---|---|---|
| Selling Fees | $675 | LotCaliper reseller-model assumption: 15% of modeled gross resale. |
| Shipping | $1,000 | Buyer-managed packing, loading, and inbound-logistics reserve; not a quote. |
| Testing Repair Reserve | $2,550 | Functional-verification and repair reserve; not a service quote. |
| Other | $500 | Configuration, accessory, or software-recovery reserve; it does not assert a component is missing. |
| Risk Buffer | $600 | Uncertainty and return-risk reserve; not a quote. |
- Buyer premium
- Not modeled
- Return requirements
- $500 minimum profit · 30% minimum ROI
- Computed bid constraints
Profit floor: $0
ROI floor: $0
Binding: Profit and ROI floors
- Snapshot blind/as-is max hammer
- $0
- Modeled result at recorded bid
- No bid recorded
This is a reseller ceiling, not a prediction of the auction's closing price. Any buyer premium or other unquoted acquisition charge must be deducted before bidding.
Configuration, condition, and conservative bid ceiling
A photo-confirmed Denton Vacuum DV-502A is present in a mixed lot, but vacuum stack, source, gauges, chamber, cooling, function, age, and other equipment identities are unestablished, leaving a $0 blind hammer ceiling.
Verify identity, configuration, functional state, packing/removal cost, and any buyer premium before using a positive conditional ceiling.
- Do not convert unknown bids or bidder counts to zero.
- Do not credit unverified components, software, accessories, or function.
Recommendation and rationale
Snapshot decision
REVIEWREVIEW: The $4,650 blind non-acquisition cost stack exceeds net resale before hammer.
Confidence
- Identity
- High
- Configuration
- Medium Low
- Condition
- Low
- Market Support
- Medium
- Costs
- Medium Low
Why these confidence levels were assigned
- Identity rationale
- A supplied auction photo directly shows the Denton Vacuum DV-502A front-panel marking.
- Material unknowns: Bounded
- Configuration rationale
- Roughing/high-vacuum pumps, source hardware, thickness monitor, chamber/seal integrity, gauges, rotation, cooling-water path, age, power-on, vacuum/deposition performance, and other lot equipment identity
- Material unknowns: Unbounded
- Condition rationale
- Seller calls the mixed lot usable, but no power-on, vacuum, deposition, gauge, cooling-water, or leak-test evidence is retained.
- Material unknowns: Unbounded
- Market Support rationale
- Exact-model records are a materially stronger $15,000 dealer ask, a $3,350 high-vacuum-untested marketplace ask, and a sold archive with only a $169.99 last listed price, not a verified transaction amount.
- Material unknowns: Bounded
- Costs rationale
- Reserves are operator allowances, not quotes.
- Material unknowns: Unbounded
Market support assesses how well the available evidence supports the resale assumption. Exact third-party marketplace records may be omitted when source-use rights are unclear. Each dimension uses the published methodology rubric; a confidence label measures the strength and boundedness of its evidence, not the likelihood of a profitable outcome.
Risks and unknowns
High · Functionality Unverified
Material configuration and functional verification remain unresolved.
Roughing/high-vacuum pumps, source hardware, thickness monitor, chamber/seal integrity, gauges, rotation, cooling-water path, age, power-on, vacuum/deposition performance, and other lot equipment identity
Sources
View cited public sources
- GSA Auctions API / Data.gov
Official public provenance for auction facts; no unverified direct item URL is invented.
- GSA Auctions item 379033
Official immutable auction-observation provenance.