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Used: CEM Liberty Microwave Peptide Synthesizer SP-1422 w/ PepDriver Software

Laptop w/ Software. Backed by our 90-day warranty.

Quick Overview

Used - A pre-owned and tested instrument that may show signs of wear

Flat-Rate Freight with a Custom Crate ($380) - The instrument is protected by a custom-built, foam-padded crate.

Backed by a 90-day Warranty - Your instrument works, or we repair, refund, or replace.
AdID: 15116

Availability: In stock


Tested Microwave Peptide Synthesizer

For a budget lab that can offer some TLC

This CEM Liberty peptide synthesizer is fully tested and mostly functional. We think it's best suited for a budget laboratory that has the expertise to get it humming along again.

See below for a detailed account of this instrument's behavior.

Testing Results

We connected this CEM Liberty to a laptop and ran the PepDriver software. Running a method from the Maintenance menu of the program allowed us to hear almost every valve open and close. However, valve L10 and twelve "R" valves did not make any noise (see photos).

All 3 rotary valves can be heard moving the selector. The first and second sensors register the correct position, but the third sensor makes the noise repeatedly. Meanwhile, the "current" reading fluctuates between the desired reading and the original reading.

The actuator cycles until reporting a positional error, but selecting position 1 causes it to emit a short run cycle noise and the current position reads "1" without any errors.

Feel free to contact us for more details concerning our testing and service processes.

The microwave is fully functional.

New display in Discovery unit

New power supply in Liberty unit

PepDriver software pre-installed on included laptop

Note: Reagent vessels not included

Reliable Instrument Vendor

New Life Scientific is an experienced scientific vendor with a history of positive customer experiences (just check out our eBay reputation!). You can have confidence in our technical evaluations and our warranty knowing that we have actual in-house technicians who inspect, test, service, and repair the various instruments we receive.

After their examinations and being cleaned inside and out, products often leave our shop meeting manufacturer specs.

When you buy from New Life Scientific, you're free to contact us at any time for after-sales support concerning any questions or issues that may arise, even after your warranty expires.






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Mfg. Date


Serial No.


Electrical Requirements

100/240 VAC
1.5 A
50/60 Hz
150 W

Dimensions (W x D x H)

27 x 20 x 33.5" (68.6 x 50.8 x 85.1 cm)