Self storage locks & door hardware · Wenzhou, China

Products · Key systems

Key systems for multi-unit storage

Keying is the one part of the specification that cannot be corrected after production. Plan it once, record it, and every future replacement still matches the keys your tenants already hold.

Choose your configuration

Four decisions shape this order. Pick what applies and we will confirm the rest with a sample.

Keyed alike
One key opens a defined group of units
Suits small facilities or groups under one operator. Trade-off: a lost key exposes the group.
Keyed different
Every unit has its own key
Suits maximum tenant separation. Trade-off: more keys to manage.
Master / manager key
Tenant key opens its unit; manager key opens the site or group
Suits multi-site operators and any facility with an overlock routine. Needs planning before production.
Overlock keying
Manager key operates overlock hardware
Planned on the same schedule as the unit cylinders.
Re-order path
Stored specification and key plan
A cylinder ordered in three years still matches existing keys.
Four-level master key hierarchy diagram: tenant key, group key, site key and group key, showing what each one opens
Four levels cover most operators. Draw the permission structure before the key structure.

Specification

Category-level parameters. Model references and packing quantities are confirmed in the catalog and in your quotation.

Key systems for multi-unit storage — category specification
StructuresKeyed alike · keyed different · master key · manager key
Applies toCylinder locks, keyed padlocks and overlock hardware on the same schedule
Not applicable toCombination padlocks — no key cylinder
Planning inputsUnit count per site, total across sites, uniqueness requirement, manager key quantity and scope, lost-key policy, overlock requirement
DocumentationKey plan recorded per site and stored against your specification
Re-orderProduced against the stored plan so later orders match existing keys
MOQFrom 500 pcs — keying schedules confirmed with the quotation
SampleFrom 5 days
Batch productionAround 30 days after spec and artwork confirmation
Trade termsEXW · FOB · CIF · CFR · DDP

No model references, prices, stock levels or sales figures are published here. Where a parameter depends on the specific model, we confirm it for the model you order rather than describing the whole family.

Fit and compatibility

  • Key systems apply to cylinder locks, keyed padlocks and overlock hardware — all planned on one schedule.
  • Combination padlocks are outside the key system: there is no cylinder to key.
  • Keying is fixed at production. Changing it afterwards means replacing cylinders, not re-cutting keys.
  • Plan overlock keying at the same time as unit keying so one manager key covers both.

Fit confirmed by sample, not by drawing. Send a door photo, the cylinder size or the mounting dimensions and we will send a physical sample before you commit to a quantity.

Ordering information

The commercial terms for this family. They are confirmed with the quotation, so a re-order two years from now carries the same conditions rather than a new set.

MOQ
From 500 pcs
Heavy customization — a new mold, a special key system, printed blister cards — may require more. The exact figure is confirmed with your quotation.
Samples
From 5 days
Sent so you can check fit and finish on your own door before committing to a quantity.
Batch production
Around 30 days after spec and artwork confirmation
Peak periods such as Chinese New Year are flagged when you order.
Delivery terms
EXW · FOB · CIF · CFR · DDP
More than one term can be quoted so you can compare what the goods cost against what the freight and duties cost.
Payment
T/T · L/C · Credit card
A first order normally runs on a deposit with the balance against the documents or on shipment.
Documentation
Spec sheet, inspection record, packing list, pre-shipment photos
Test records are issued per model and per finish, and are available for the model you order.

Tell us the quantity, the door type and the destination country and we will quote the configuration rather than a list price.

Options and customization

What can change without changing the product's identity.

Key plan document

We return a written key plan with your quotation: which key opens what, and how many of each.

Manager key scope

One key for a single site, or a group-level key across multiple sites, depending on your requirement.

Lost-key policy

Decide at planning stage whether a lost tenant key means rekeying the unit or accepting the exposure until move-out.

Re-order continuity

The plan is stored, so a replacement cylinder ordered years later is produced to the same keying.

Quality and evidence

What you receive before the goods ship, and what stays on file.

SGS

Verified supplier

On-site audit completed October 2025.

ISO 9001

Quality system

Incoming, in-process and final inspection.

Plan

Written key plan

The keying schedule is recorded against your account, not kept in an email.

Re-order

Continuity

A cylinder ordered later is produced to the same keying as the first order.

How we inspect and test

Buyer questions

Which key structure should a facility use?

There is no single answer. Keyed alike suits a group of units under one operator. Keyed different gives maximum tenant separation. A master key suits any site where a manager needs access. Most facilities end up with a mix. Tell us the unit count and who needs access and we will propose a plan.

Can keying be changed after production?

No. Keying is set when the cylinders are assembled, so a change means new cylinders rather than re-cut keys. That is why we plan it before the order rather than after.

How many manager keys should we order?

Enough to cover normal operations plus a documented reserve. Tell us how many staff need site access and whether you need a group-level key, and we will size it with the key plan.

Do padlocks and cylinders share a key plan?

They can, and usually should. Keying both families on one schedule is what prevents a site from ending up with padlocks on one key and cylinders on another.

Can you supply a replacement cylinder years later?

Yes, provided the original key plan is on file with your specification. That is the main reason we document it — a cylinder ordered three years later matches the keys your tenants already hold.

Related families:

  • Keyed Alike & Master Key · Cylinder Locks · Overlock & Lockout Hardware · Disc Padlocks · Padlocks
  • All product families →

    Send us your door type and unit count

    We will come back with a fit confirmation, a configuration and a price — typically within 4 business hours.