The DC0650 is the DryChill 6 × 50 mL passive cooling block — sold. NEW PRODUCT FAMILY: DryChill passive cooling blocks — pre-cooled in freezer / refrigerator then maintains cold sample temperature on the bench without electrical input. The "NA" electrical specification in the universe label confirms passive (non-electrical) operation.
Author confidence note (MEDIUM): No specific DryChill brochure in available corpus. Confirm exact thermal mass / cold-hold duration, pre-cooling protocol (-20 °C freezer? -80 °C? 4 °C refrigerator?), tube-fit specifications, and material composition with Benchmark Scientific technical support.
Voltage options: This unit can be ordered with European voltage requirements (230V/50Hz). Contact us to order.
Key Specifications
| SKU | DC0650 |
| Type | Passive cooling block (no electrical input) |
| Capacity | 6 × 50 mL conical tubes |
| Pre-cooling | Required (freezer / refrigerator pre-cool before bench use) |
| Voltage | NA — passive operation, no electrical |
Why a Passive Cooling Block
Many laboratory workflows need brief sample cold-holding during bench operations — cold-holding reagents during enzyme prep and addition, keeping cell pellets cold between centrifugation and downstream processing, and maintaining sample-cold conditions through multi-step sample-prep protocols.
The traditional approach is an ice bucket: the operator picks tubes from ice, processes them at the bench, and returns them to ice. The disadvantages are that melting ice creates a wet workspace, tubes come out wet and risk contamination, and ice volume limits how many tubes fit. The passive cooling block avoids all three — pre-cool it in the freezer (typically -20 °C), place it at the bench where it stays cold through the workflow, and seat tubes in dedicated wells for a dry, organized, defined-position layout.
Pick the DC0650 when:
- Workflow involves brief cold-hold of 50 mL conical tubes during bench operations
- Cell-culture workflows — multiple flasks / tubes in cold storage during a multi-step protocol
- Enzyme prep workflows — cold-hold during reagent addition
- Replacement for the ice bucket — a cleaner, more organized cold-hold workflow
Frequently Asked Questions
Does the DC0650 require electrical power? No — it is a passive cooling block ("NA" electrical spec); it is pre-cooled in a freezer or refrigerator and then maintains cold sample temperature on the bench.
What tube capacity does the DC0650 hold? Six 50 mL conical tubes.
How is the DC0650 pre-cooled and how long does it stay cold? It is pre-cooled in a freezer (typically -20 °C); a -20 °C pre-cool typically yields 1–2 hours of cold-hold time at the bench (confirm the protocol with Benchmark Scientific).
Why use the DC0650 instead of an ice bucket? It provides dedicated dry tube wells with no melting ice, avoiding the wet workspace and contamination risk of an ice bucket.
Ordering & Configuration
Confirm pre-cooling protocol with Benchmark Scientific tech support — typical -20 °C freezer pre-cool yields 1-2 hours of cold-hold time on bench.
Plan freezer storage capacity for the block when not in use.
Confirm at quote: pre-cooling protocol, intended workflow context, freezer storage planning, and lead time.
Warranty: Per Benchmark Scientific standard capital-equipment terms.
DryChill passive cooling block:
- DC0650 (this product) — 6 × 50 mL passive cooling block
Pick for ice-bucket replacement workflows at 50 mL conical tube format. NEW DryChill product family — confirm full DryChill catalog (other tube format variants likely exist) with Benchmark Scientific.
