Folder Inserter Machines

Our engineers are based throughout the UK to provide a speedy response

Folder Inserters That Make Outbound Mail Faster and Safer

Reduce the time spent folding documents and filling envelopes by hand. Twofold’s folder inserters automate folding, inserting, and sealing, helping your team prepare invoices, statements, notices, and customer communications quickly and accurately.

From compact machines for everyday office mail to high-volume production systems, we can help you find the right setup for your documents, envelopes and mailing volumes.

Find the Right Folder Inserter

Take the Manual Work Out of Preparing Mail

Folding documents, matching pages and filling envelopes can take hours when completed by hand. It also becomes harder to maintain accuracy as mailing volumes increase or document packs become more complicated.

A folder inserter combines these steps into one automated process. Load the documents and envelopes, select the job, and the machine folds, inserts, and seals each mailpiece, ready for sending.

Prepare outbound mail in less time

Reduce repetitive manual handling

Produce consistently folded and presented documents

Improve control over confidential and personalised mail

Manage higher volumes without adding more manual work

Free up staff to focus on more valuable tasks

Low to Medium Volume

TFi-40i

TFi-67i

TFi-77i

High to Production Volume

View All

TFi-85i

TFi-95i

TFi-700i

Find the Right Folder Inserter

The right machine depends on how much mail you send, how complex each mailpiece is, and the level of checking and reporting you require.

Model

Best suited to

Processing speed

Recommended monthly volume

TFi-40i

Small offices and everyday mail

Up to 1,350 items per hour

Up to 5,000

TFi-67i

Growing teams with regular mail runs

Up to 2,500 items per hour

Up to 20,000

TFi-77i

Busy teams requiring greater control

Up to 3,800 items per hour

Up to 40,000

TFi-85i

More Than an Envelope Stuffing Machine

Modern folder inserters do much more than fold a letter and place it into an envelope.

Depending on the model and configuration, the machine can read OMR marks, characters and 1D, 2D or QR barcodes. This lets it identify which pages belong together, detect double feeds, and help ensure the correct documents go in each envelope.

For organisations sending financial, medical, customer or other sensitive information, these controls provide greater confidence in every mailing. Selected models can also track processing activity and produce reports for an additional audit trail.

Tell me more about OMR

Built Around the Mail You Send

Every organisation’s outbound mail is different. You may send simple one-page letters, personalised statements, invoices with supporting documents or packs containing several inserts. We can recommend a machine that fits the work you are actually handling rather than simply suggesting the biggest model.

Twofold will look at:

Your daily and monthly mail volumes

The documents and envelope sizes you use

The number of pages or inserts in each pack

Whether page matching or barcode reading is required

Your reporting and mail integrity requirements

How your mailing needs could change in the future

Why Choose Twofold

Choosing the machine is only part of the process. Twofold can help with the initial assessment, machine configuration, installation, operator training and ongoing maintenance.

Our field-based engineers are located throughout the UK, supported by a UK helpdesk that can assist with faults and everyday questions. If your requirements change, we can also help you review your setup and identify the next suitable step.

Experience

About Us

Support

Get Support

Innovation

Download Case Studies

Frequently Asked Questions

What is a folder inserter?

A folder inserter automatically folds documents, places them into envelopes and seals each completed mailpiece. It can be used for invoices, statements, notices, letters, mailshots and other customer communications.

Is a folder inserter the same as an envelope stuffing machine?

Yes. “Folder inserter”, “mail inserter” and “envelope stuffing machine” are different names for the same type of equipment.

Which folder inserter do I need?

Start by considering your monthly mail volume, the number of pages or inserts in each envelope and whether you need document matching, barcode reading or reporting. Twofold can assess your current mail and recommend a suitable model.

Can a folder inserter handle personalised documents?

Selected models can read OMR marks and barcodes to identify which pages belong to each recipient. This supports variable-page documents and more complex personalised mailings.

Are folder inserters difficult to operate?

The machines are designed for straightforward operation, with touchscreens, guided setup and saved job settings available across the range. Twofold can also provide installation and operator training.

Can I test my documents before choosing a machine?

Yes. Twofold can arrange a demonstration using your documents and envelopes so you can see the results before deciding which machine is right for you.

Find a Better Way to Prepare Your Outbound Mail

Whether you are moving away from hand-filled envelopes or upgrading an established mailroom, Twofold can help you choose a folder inserter that balances speed, accuracy, and control.

Typical benefits of a digital mailroom in banking:

Mortgage document processing
Mortgage document processing
Mortgage document processing
Mortgage document processing
Mortgage document processing

Folder Inserters

Envelope-stuffing & Letter Folding Machines made for Simplicity