The Uchida UBH-57VK-S is suited to cash-handling offices and organisations that need staff to deposit envelopes without opening the main safe door. It measures 500 H × 350 W × 425 D mm, weighs 57 kg and includes an envelope slot, one plastic tray and one adjustable shelf. Buyers should confirm that the delivery route and final position can accommodate its size and weight. This system also suits users who prefer not to remember a password and want a straightforward mechanical arrangement with less electronic complexity for maintenance and servicing.

The envelope slot allows authorised staff to deposit envelopes without opening the main safe door. Deposits should be appropriately sized and must not obstruct the slot or internal fittings.

Fire protection is limited due to the envelope slot. The slot changes the cabinet construction, so the UBH-57VK-S should not be presented as providing the same two-hour protection as the corresponding non-slot model; an exact duration is not stated for this variant.

The left-hand lock uses the operational key required for normal opening. The right-hand key lock is optional and can be engaged when an additional level of control is preferred; it is not an override key. The two locks can support a two-person control procedure by assigning the operational and optional keys to different authorised people.

We currently offer three Uchida dual-key models: the UBH-57K wide-format safe, the UBH-57VK upright safe, and the UBH-57VK-S envelope-slot safe. All three use a required left operational key and an optional right key that can support two-person control.