BioClave 28 Autoclave , 28 L, 120 V

The B4000-28-120 is the largest autoclave in the BioClave family — 28 L chamber capacity at $13,895 ($6,350 step over the BioClave 18 at $7,545). Same validated 121 °C steam-sterilization mechanism as the smaller sisters, scaled to production-scale workflows — large-batch media sterilization, large-batch glassware sterilization, multi-investigator shared-facility throughput, production-scale biohazard waste decontamination at facility scale.

Universe naming-convention note: The BioClave 28 uses -120 / -220 SKU suffixes (denoting plug type — 120 V US vs 220 V international) rather than the "" / -E suffix pattern used by the Mini and 18 sisters. Both -120 and -220 SKUs ship at the same $13,895 price.

For full chemistry rationale (validated sterility, BioClave vs other decontamination modalities, electrical / water / facility planning, safety considerations), see the B4000-M (BioClave Mini) anchor page and the B4000-18 mid-size parent page.

Voltage options: This unit can be ordered with European voltage requirements (230V/50Hz). Contact us to order.

Key Specifications

Why the 28 L Capacity — Production-Scale Workflows

The 28 L chamber is the largest BioClave — it supports workflows that exceed the 18 L chamber's capacity: production-scale media sterilization (8–15+ standard 1 L media bottles per cycle), large-batch glassware sterilization (15–25+ flasks or bottles per cycle), multi-investigator shared-facility throughput consolidating multiple workflows into single cycles, production-scale biohazard waste decontamination at facility-scale BSL2 volume, cell-culture facility bulk media prep, and high-stakes pharmaceutical or biotech sterility workflows at scale.

Pick the BioClave 28 (B4000-28-120) when:

• Production-scale sterilization is the workflow throughput driver
• Multi-investigator shared facility consolidating multiple workflows into single autoclave cycles
• Cell-culture facility / production-prep procurement at facility scale
• The 18 L chamber has been throughput-limiting (frequent batch-by-batch sequencing)

Stay with B4000-18 (18 L, $7,545) when mid-throughput workflows match the smaller chamber.

Stay with B4000-M (Mini, $5,453, 200–240 V only) when small-batch workflows + dedicated 200–240 V circuit match the procurement.

BioClave Family — Capacity Comparison

Application Profile

Production-scale media sterilization — bulk media prep at facility scale.

Large-batch glassware sterilization — high-throughput glassware sterilization workflows.

Multi-investigator shared-facility procurement — consolidating multiple investigators' workflow into shared cycles.

Production-scale biohazard waste decontamination — facility-scale BSL2 waste cycles.

Cell-culture facility procurement — bulk-media-prep at production scale for cell-culture work.

Pharmaceutical / biotech bench standardization — high-stakes sterility workflows at facility scale.

Multi-cycler facility procurement — facilities consolidating sterilization onto a single large autoclave vs operating multiple smaller ones.

Educational laboratory teaching at scale — graduate / undergraduate program-wide sterilization at production-scale procurement.

Frequently Asked Questions

What is the chamber capacity of the BioClave 28? 28 L — the largest chamber in the BioClave autoclave family, sized for production-scale workflows.

How does it compare to the smaller BioClaves? It lists at $13,895 — a $6,350 step over the 18 L BioClave 18 ($7,545), and larger than the BioClave Mini ($5,453). All share the validated 121 °C steam-sterilization mechanism.

What does the -120 suffix mean? It denotes plug type — the -120 is the US-plug variant and the B4000-28-220 is the 220 V international-plug variant. Both are universal-input chassis and ship at the same $13,895.

What is the sterilization mechanism? Pressurized steam at 121 °C. Note the high-pressure steam and thermal (121 °C) hazards, which are more pronounced at this largest chamber volume.

What accessories are available? The B4000-P printer ($387), B4000-PA printer paper ($52), and the B4000-PM-KIT preventative-maintenance kit ($100).

Ordering & Configuration

Confirm electrical infrastructure. 115 V or 230 V — confirm circuit amperage matches the larger 28 L autoclave's draw at order.

Confirm bench-space and floor-space. The 28 L chassis has substantially larger footprint than the smaller BioClave sisters — confirm available facility space.

Confirm water source and drainage at production-scale flow rates. The 28 L chamber consumes more water per cycle than smaller sisters — confirm water-supply capacity at order.

Confirm regulatory compliance plan, accessory pairing, preventative maintenance schedule — see B4000-M parent page for full procurement-planning detail.

Confirm at quote: voltage and plug type (-120 vs -220), facility-space, water supply / drainage at production-scale flow, regulatory compliance, chamber-load sizing, preventative maintenance, training, warranty, and lead time.

Warranty: Per Benchmark Scientific standard capital-equipment terms.

Safety note: the BioClave 28 operates with pressurized steam at 121 °C+ at the largest BioClave chamber volume — meaning more thermal mass and longer pressure-equalization cycle than smaller sisters. Confirm operator safety training, PPE, door-interlock verification, and post-cycle pressure-equalization protocol especially carefully at the production-scale chamber.

BioClave family — pick the right size:

- B4000-M / -M-E — Mini ($5,453, 200–240 V only)

- B4000-18 / -18-E — 18 L ($7,545, 115/230 V) — mid-throughput

- B4000-28-120 (this product) / -220 — 28 L ($13,895, 115/230 V) — production-scale / facility-wide

Pick the BioClave 28 for production-scale sterilization at facility scale; sister sizes cover smaller-batch workflows. See B4000-M anchor for full BioClave family chemistry / safety detail.