Relay 4500 Folder Inserter

Relay 4500 

Folding and inserting made fast and accurate

Increase your productivity and improve the accuracy of your mailing process with the Relay 4500 folder inserter. Designed on a tried and proven platform, the reliable Relay 4500 is able to finish up to 42,500 mail pieces per month. Features including the high capacity envelope feeder and cascading feeding from the sheet feeders maximize effciency by minimizing time spent loading materials. Gain confidence knowing that your largest critical mailings are finished on time, every time, without errors..



Flexible processing


Automating mail folding and inserting saves time and money.

Eliminate costly delays in mailing due to manual errors. 

Invoices, statements, letters, promotions and other correspondence are folded, inserted and securely sealed in envelopes, ready for mailing.

Automatically fold and insert up to two letter or legal sized sheets into a #10 envelope.

Drive Sales

Speed cash flow

Easy to use

Reduce manual labor

Add a promotional insert or reply envelope to your communications to help grow your business.

Invoices get out faster. That means that your payments come back to you sooner.

All the controls are right at your fingertips with prompts in English or Spanish — clearly displayed on the control panel.

Our system processes 3,500 pieces per hour and is six times faster than manual processing.

Sheet Feeder

Control Panel

High Capacity Envelope Feeder

Standard Envelope Stacker

Optional vertical power stacker 

Fold and insert two types of documents. Link the feeders for total capacity of 650 total sheets.

Touchscreen makes it easy to set up and retrieve jobs. Start mailing in seconds.

Handles various letter-sized envelopes including #10 and 6 x 9 ½” envelopes.

Standard Envelope Stacker

Optional vertical power stacker maintains print order and holds up to 500 finished envelopes.