Forensic Intelligence Report: Chamber Infrastructure
01
Compact UHV Rotary Actuation
The VACGEN RD93 is a premium, small-format manual rotary feedthrough. Highly favored in institutional laboratories, this specific 1.33" CF (34mm OD) configuration is the definitive standard for integrating miniature manipulators, sample shutters, and compact alignment mechanisms. It delivers low backlash and smooth continuous primary rotation into confined vacuum envelopes.
02
Edge-Welded Bellows Architecture
Unlike standard O-ring sealed drives, the RD93 transmits rotary motion across the absolute vacuum boundary utilizing an advanced edge-welded stainless steel bellows. This hermetic, metal-to-metal sealing architecture ensures absolute UHV integrity, preventing hydrocarbon contamination and supporting rapid pump-downs.
03
Forensic Audit: New Open Box (Unissued)
Condition Note: New Open Box (NOB). Forensic visual audit confirms zero installation witness marks on the 6-hole 1.33" CF flange. The primary 4.75mm diameter vacuum shaft (38mm length) is verified factory-straight. Mechanical rotation via the 6.35mm input shaft is factory-smooth, delivering nominal ~0.1 Nm torque with a verified ~16 N thrust load capacity.
⚙️ Operational Directives & Commissioning Protocol
Hardware Integration: The 6.35mm (1/4") atmospheric input shaft is designed to accept standard manual adjustment knobs utilizing a localized locking screw. Do not over-torque the locking screw to prevent galling on the input shaft.
Thermal Processing: The unit is rated for continuous UHV service. It supports system bakeouts up to 250°C fully assembled. For extreme thermal degassing, the drive can sustain 400°C bakeouts, provided the external manual actuator mechanism is removed prior to heating.
MANUFACTURERVACGEN
MODEL SERIESRD93
INTERFACE GEOMETRY1.33" CF (34MM OD)
VACUUM SHAFT4.75MM Ø × 38MM L
INPUT SHAFT6.35MM Ø (1/4")
MOTION PROFILELOW BACKLASH
SEALING MECHANISMEDGE-WELDED BELLOWS
CONDITIONNEW OPEN BOX (UNISSUED)
Hardware Status Matrix
Tier 1: Audited NOB
Pristine. Unissued.
✓ CURRENT STATUS
Tier 2: Audited Used
Performance Vetted.
Not Applicable
Tier 3: Audited Used
Cosmetic Marks Disclosed.
Not Applicable
BLUE DIAMOND PROTECTION PROTOCOL: ACTIVE
TOP RATED PROTECTION: This listing qualifies for Free 30-Day Domestic Returns. Per eBay Seller Protection policy for Top Rated Plus members, any item returned in a condition different from the original shipment (including but not limited to: installation witness marks on the CF flange, torque-sheared internal bellows from off-axis loading, or atmospheric process contamination) will result in an immediate, mandatory 50% deduction from the refund to account for the catastrophic loss in unissued technical utility. Forensic Evidence: All returns must be photographed immediately upon arrival.