Quality Control Procedures
Jump Your Way to Health & Fitness
Quality Control Procedures to Ensure that You Receive the Highest Quality Fitness Equipment
Quality Control Procedure:
Rebounders and Stabilizing Bars
Needak Manufacturing LLC
Quality Control Procedure – Rebounders
Each component supplier has been provided a specification on the tolerances and quality limitations of each component they supply to Needak. In some instances these are only technical drawings and narratives and in others specialized measuring tools are provided. As a good business practice, Needak samples and tests each lot of components to ensure it conforms to our needs.
The following Sub-Assemblies each have their own quality control tests to ensure conformance:
Frame sub-assembly: Random sampling of each pallet is done to ensure frames meet tolerances established by print and agreed tooling. If any one sample fails the test, all frames in a lot require evaluation before passing into Assembly.
Jump Mat: Random sampling of each carton is done to ensure it meets tolerances established by testing tooling. If any one sample fails a test, the contents of the entire carton will be individually evaluated for conformance before passing into Assembly. When the mat is installed on the rebounder it is checked for stray threads, defects in the polypropylene fabric, and defects in the mat cleats.
The following components each have their own quality control test to ensure conformance:
How Our Rebounders are Assembled
Leg Tube: Each leg tube is measured for uniform length and examined for defects. Those passing are surface cleaned and become part of the leg sub-assembly.
Leg Spring: Each leg spring is visually inspected as to the hook shape and general form as it is installed as part of the leg sub-assembly. Final leg spring test is spring tension as the spring is pulled in preparation for attachment to the frame.
Leg Tip: Each leg tip is visually inspected for defects and surface discoloration before being added to the leg sub-assembly.
Leg Sub-Assembly is completed by combining the leg tube, leg spring, leg tip, packaging sleeve, rubber band. Assembly is checked that the leg tip is fully pressed onto and square with the leg tube.
Mat Spring: Each mat spring is visually inspected as to the hook shape, general form, and defects as it is installed.
Clevis Pin: Each clevis pin is visually inspected as they are inserted for defects in forming or missing through hole or countersink.
Spring Cover: Each spring cover is checked prior to installation for inner and outer band tension and 6 attachment points near each.
Quality Control Procedure: Rebounder Assembly
The Leg sub-assembly is attached to the Frame sub-assembly and each leg is checked to make sure it seats fully onto the platform pins. A tactile check of the frame discovers bumps and burrs. Visual inspection is also made for paint defects, dents, or other issues. Clevis Pins are inserted through the frame holes and mat springs are attached. With all 36 mat springs now in place, the jump mat sub-assembly is now attached.
The mat and springs are all visually inspected for defects under tension.
The rebounder is placed on the flat table and checked that all 6 legs touch the table and hinges are engaged. It is then placed on the floor and bounced to check that it is stable and quiet. After passing this step the rebounder is turned over and visually inspected from the underside.
Each leg is raised from the platform pin and folded in toward the mat. Non-folding units are now ready for shipment.
If the rebounder is a folding unit, 36 retaining tubes are inserted on the hooks of the springs nearest the jump mat and tucked inside the barrel of the spring. Folding units are now folded in half observing the action of the hinges under spring tension. Finally the folding units are enclosed in the carry bag and inspected for any visual defects or stray threads before storage or shipment.
Quality Control Procedure – Stabilizing Bars
Legs-each leg is inspected visually for defects such as missing paint or texturing under the paint. A tactile check also discovers bumps and sharp burrs. A leg tube is passed through the bar leg sleeve to ensure it is sized properly. The hole which accepts the spring button near the top of the leg is checked for size and burrs.
Spring button is now inserted and leg tip added to the bottom of the leg. Leg tip is inspected for defects and soiling. A safety label is added to each pair of legs and they are packaged in fabric sleeve which immobilizes them during shipment.
Male bar-each male bar is inspected visually for defects such as missing paint or texturing under the paint. A tactile check also discovers bumps and sharp burrs. The connecting stub has a hole in which the spring button will be placed and is checked for size and burrs. The other end has 3 holes which are also checked for burrs and size. Lower end of the bar is tested for size to accept the leg steel. Finally the snap button is inserted in the stub.
Female bar-each female bar is inspected visually for defects such as missing paint or texturing under the pain. A tactile check also discovers bumps and sharp burrs. At the upper end is a single hole which accepts the spring button from the male bar. The other end has 3 holes. All 4 holes are checked for burrs and size. Lower end of the bar is tested for size to accept the leg steel.
Male and Female bars are paired up and the upper end is connected to ensure the snap button will engage. Once the pairing has been successfully connected, it is disassembled and each receive a 9” foam grip at the upper portion and 4” foam grip at the lower portion of the bars. The bar is placed in a fabric sleeve and is now ready for shipping.