West Midlands Police was alerted to the burglary in Blackbrook Road, near the canal, at 5.40pm on Sunday after witnesses described three men using a transit van to ram the building before loading metal and tools into the vehicle.
Officers arrived minutes later but their car was rammed by the offenders as they made their escape.
The officers suffered bruising but luckily weren't seriously hurt.
Police found the van - later confirmed as stolen - abandoned in Peartree Lane and recovered the stolen items.
Two teenagers spotted near the van were arrested as they matched the description of the offenders, and a third teenager was later detained.
However, they have been released without charge having been eliminated from inquiries.
Police say they are assessing CCTV and will forensically examine the van as officers try to identify the three offenders.
An appeal has been made for witnesses to come forward.
If anyone saw the van being dumped in Peartree Lane and men running off, they are asked to get in touch with police.
Anyone who was driving in the area at the time and has dash-cam footage is also being asked to check the footage in case they caught the offenders on camera.
People can message police on live chat through the website or call 101, quoting crime reference number 20/314272/22.