Trouble Shooting Fischbein Model F

The Fischbein F-Series bag closers are handheld, portable, industrial sewing machines ideal for small volume (4-8 bags/min.) bag closing applications. Weighing only 11 lb., the handheld F-Series can easily sew multi-wall paper, polypropylene, burlap and jute bags. Available F-Series portable bag closing models include: vertical bag sewing, horizontal bag sewing and tape bag sewing.

Frequently Asked Questions

Do you also sell machines?
No, we only sells parts direct or via our partner suppliers.

Do you have stock on the items on the website?
Yes, all items are in stock, however, it takes some days to ship them out or collect them from our supplier.

Do you guys do repairs?
No, we do not do repairs, but we can send you to the guys that do repairs.

Do you also ship outside of the United States?
Yes, we also Export to the countries around us like Canada

If i order i do not pay in the shop, why is this?
Many times we need to verify if you have not made an order or you want to order maybe parts that are not yet published on our website. For this reason the webshop is a ways to have a first contact with you, our customer.

Do you also sell other spare parts? For example Brother, Pfaff
We do sell all sorts of spare parts, however, we do not have yet all the spare parts online.

Do you also ship outside Continental USA for the same price?
Yes, but there is a price increase.

Do you only sell brands?
No, we also sell alternatives parts on request for example the needles we have equivelant and compatible needles from other brands available such as Groz Beckert, Schmetz and Organ needle. We always make clear that what you get is the original or an alternative other brand that is tested either for better price of faster availability.

About Liberty Sewing

Liberty sewing sells industrial sewing parts such as Durkopf, Pfaff, Newlong, Union Special and more. Our website just shows a handfull of parts for the sewing machine to give you an impression of what we can offer. Sending us your list of parts and we can check if they are stock or time of availability. 


Contact us

Liberty sewing is located in Atlanta, Georgia and ships together with there partners from all over the United States.

Liberty Sewing
2300 Windy Ridge Parkway SE
United States of America
Mail us at:

Spring Balancer SB-7K for Newlong NP-7A, NP8, NP-7H, NP7 Crepe tape and NP3-II

This is a spring balancer complete with connecting hook. A spring Balancer supports the weight of the NP-7A bag closer so the operator does not have to carry the weight of the machine all the time. For safety use a chain to suspend the SB-7K spring balancer from the ceiling. Attach the looped end of the curved hanger to the SB-7K tool balancer. Pull the NP-7A Portable bag closer down to a comfortable height to work – the machine will stay at this height but is still flexible by pushing it down from the user. The spring balancer is ideal if you are working and standing in one spot for long periods of time.
Spring Balancer and Hanger can be used with Newlong NP-7A, Fischbein, and other simular portable bag closers. portable bag closers

  • Cable length of the SB-7K spring balancer is approximately 5 feet (1about 1,5 meters)
  • Replacement parts are special order.
  • We always have this item in stock
  • Item number: SB-7K Spring Balancer

Newlong Looper 243102 for NP-7A

Newlong Looper for the Newlong NP-7A Portable Bag Closer. The NP-7A is a portable bag closing machine which can be used to close paper bags of potatoes, poly woven bags of fertilizer and burlap bags of coffee beans and much more. It can also be used to conenct 2 pieces of material together.

  • The looper together with the needle makes the chain stitch
  • Looper <> Needle adjustment is needed to keep a good stitch
  • If the looper is out of adjustment, the stitch may not hold – or you may break the needle
  • Looper should clear the scarf of the needle by 0.1 mm – adjust the looper rocker to the correct clearance
  • We always have this item n stock
  • Item number:  243102 NP-7A Looper

Newlong Industrial NLI NP-7a

nli_newlong_industrial_np7aNLI Newlong NP-7a is the most economic industrial and robust portables on the market today from Japan. It is so robust that it is even used for integrating into (mini) sewing systems instead of a heavy duty head.

  • Most robust single stitch bag closer on the market today
  • Delivery direct from stock
  • Easy operation
  • Best priced single stitch portable within the segement

We can offer the NLI Newlong NP-7a from stock for only 465 USD.