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Drawer Slider/Runner

Product Review. Drawer Slider/Runner. June 24, 2009. Furniture 32mm System Introduction. 32mm System is an industrial standard which has been agreed by furniture and furniture fittings manufacturers. It originates from the center to center spacing of the drill pattern. Hole diameter: Ø5mm

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Drawer Slider/Runner

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  1. Product Review Drawer Slider/Runner June 24, 2009

  2. Furniture 32mm System Introduction 32mm System is an industrial standard which has been agreed by furniture and furniture fittings manufacturers. It originates from the center to center spacing of the drill pattern. • Hole diameter: Ø5mm • Hole spacing: 32mm • Distance between center of hole line and front edge of side panel: 37mm • Distance between rear hole center line and rear edge of side panel: 37mm

  3. Furniture 32mm System Introduction 32mm System Basic Rules • Hole diameter: Ø5mm • Hole spacing: 32mm • Distance between center of hole line and front edge of side panel: 37mm • Distance between rear hole center line and rear edge of side panel: 37mm • The first and last hole in a hole line should be the same distance from the top and bottom edges of side panel 32mm System Advantages • Suitable for mass production, improve production effectiveness, reduce cost • Improve hole position accuracy, improve furniture quality • Furniture fittings interchangeable from different manufacturers • Make DIY easier

  4. Furniture 32mm System Introduction Furniture fittings designed to 32mm system 1. Concealed hinge Mounting plate 2 fixing holes center distance: 32mm Hole center line to the front edge of side panel distance: 37mm Side panel drilling hole: Ø5mm

  5. Furniture 32mm System Introduction 2. Drawer runner Fixing hole center to the front edge of side panel distance: 37mm Fixing hole spacing patten is: 32mm system Side panel drilling hole: Ø5mm

  6. Furniture 32mm System Introduction 3. Metal shelf support Side panel drilling hole: Side panel drilling hole: Ø5mm

  7. Furniture Hardware Famous Brand Blum: www.blum.com Hafele: www.hafele.com Hettich: www.hettich.com FGV: www.fgv.it Salice: www.salice.com

  8. Drawer Runner Classification Drawer runner classification rules The type of runner is determined by the design of the running elements. Guide rails: Plastic rails act as gliding surfaces that support the weight of drawers and their contents. Roller-guided drawer runners: The running elements are rollers. The type of roller varies from friction bearing mounted nylon rollers to ball bearing mounted nylon rollers, ball bearing mounted nylon-coated steel rollers and silent moving rollers. Ball guided runners: Steel or plastic balls in ball cages are used as the running elements. Concealed dynamic runners: Rollers in running gear are used as the running elements.

  9. Drawer Runner Classification Drawer runner terminology • Load bearing capacity • The maximum load per runner pair. It’s a function of shape, metal thickness and length. Rated using a 18”(450mm) drawer runner. • Drawer runner length • The longest dimension of a fully colosed runner • Half extension: runner opens partially, approxiamately ¾ runner length • Full extension: runner opens the same length as the runner length • Overtravel: provide an extra extension beyond the normal extension of a full extension length • Self-closing: drawer automatically closed approximately 50mm out from the front as it is being closed

  10. Drawer Runner Classification Loading force: LB 1LB=0.45kg • 50 LB 22.5kg • 75 LB 34kg • 100 LB 45kg • 130 LB 59kg • 150 LB 68kg • 180 LB 81.5kg • 200 LB 91kg

  11. Drawer Runner Classification Load bearing capacity 20kg 1. Roller Runner Bottom mounted Load bearing capacity 30kg Load bearing capacity 30kg with self closing and damping system Single extension Load bearing capacity 20kg Side mounted Load bearing capacity 30kg Load bearing capacity 30kg with self closing and damping system Load bearing capacity 20kg Bottom mounted Load bearing capacity 30kg Load bearing capacity 30kg with self closing and damping system Full extension Load bearing capacity 20kg Side mounted Load bearing capacity 30kg Load bearing capacity 30kg with self closing and damping system

  12. Drawer Runner Classification 2. Ball Bearing Runner Bottom mounted/ side mounted/ groove mounted, load bearing capacity 10kg 17mm BBR Bottom mounted/ side mounted/ groove mounted, load bearing capacity 12kg 27mm BBR Single extension Bottom mounted/ side mounted/ groove mounted, load bearing capacity 35kg 35mm BBR 45mm BBR Bottom mounted/ side mounted/ groove mounted, load bearing capacity 40kg 53mm BBR Bottom mounted/ side mounted/ groove mounted, load bearing capacity, 80kg Bottom mounted/ side mounted/ groove mounted, load bearing capacity 10kg 17mm BBR Bottom mounted/ side mounted/ groove mounted, load bearing capacity 12kg 27mm BBR Bottom mounted/ side mounted/ groove mounted, load bearing capacity 35kg 35mm BBR Full extension 45mm BBR Bottom mounted/ side mounted/ groove mounted, load bearing capacity 40kg 53mm BBR Bottom mounted/ side mounted/ groove mounted, load bearing capacity, 80kg

  13. Drawer Runner Classification 3. Concealed Runner Load bearing capacity 20kg Load bearing capacity 30kg Single extension Load bearing capacity 30kg with self closing and damping system Load bearing capacity 20kg Load bearing capacity 30kg Full extension Load bearing capacity 30kg with self closing and damping system

  14. Drawer Runner Quality Level Drawer Runner product standard DIN EN 15338-2007: Hardware for furniture - Strength and durability of extension elements and their components Test parameters

  15. Drawer Runner Quality Level

  16. Drawer Runner Quality Level Test procedures and requirements Three sets of extensions shall be used First set shall be used for Overload test Second set shall be used for Functional test Third set shall be used for Corrosion test 1. Overload test During test, the extension element shall be loaded according to the load bearing capacity 1.1 Vertical downwards static overload F=load bearing capacity but not higher than the maximum force specificed in test parameter Carry out 10 times

  17. Drawer Runner Quality Level 1.2 Horizontal sideways static overload F=50% load bearing capacity but not higher than the maximum force specificed in test parameter Carry out 5 times each direction 1.3 Outwards static overload F=200N

  18. Drawer Runner Quality Level 1.4 Slam-shut/open Velocity=1.0/1.3 m/s 10 times for shut and open 2. Functional test During test, the extension element shall be loaded according to the load bearing capacity 2.1 Operating force When the load bearing capacity is less than 40kg, the open and closing force shall not exceed 50N When the load bearing capacity is >= 40kg, the open and closing force shall not exceed 12.5% of load bearing capacity

  19. Drawer Runner Quality Level 2.2 1st Vertical downwards static overload F=50% load bearing capacity but not higher than the maximum force specificed in test parameter Carry out 5 times 2.3 1st Horizontal sideways static overload F= 25% load bearing capacity but not higher than the maximum force specificed in test parameter Carry out 5 times each direction

  20. Drawer Runner Quality Level 2.4 Durability Grade 1: 20,000 cycles Grade 2: 50,000 cycles Grade 3: 80,000 cycles (if loading capacity is >15kg: 60,000 cycles Premium grade: 100,000 cycles (Blum standard) 2.5 Deflection of front The deflection shall not exceed 4% of the extension length

  21. Drawer Runner Quality Level 2.6 2nd Vertical downwards static overload F=50% load bearing capacity but not higher than the maximum force specificed in test parameter Carry out 5 times 2.7 2nd Horizontal sideways static overload F= 25% load bearing capacity but not higher than the maximum force specificed in test parameter Carry out 5 times each direction

  22. Drawer Runner Quality Level 2.8 Operating force When the load bearing capacity is less than 40kg, the open and closing force shall not exceed 50N When the load bearing capacity is >= 40kg, the open and closing force shall not exceed 12.5% of load bearing capacity 2.9 Slam-shut/open Velocity=1.0/1.3 m/s 10 times for shut and open

  23. Drawer Runner Quality Level 3. Corrosion test EN ISO 6720-2: Paints and varnishes - Determination of resistance to humidity - Part 2: Procedure for exposing test specimens in condensation-water atmospheres Requirement: 3 cycles AHT EN ISO 9227: Corrosion tests in artificial atmospheres —Salt spray tests Requirements: 24 hrs (general products) Ra/Rp=7/9 48 hrs (premium products) Ra/Rp=7/9

  24. Drawer Runner Quality Level 4. Other requirements( not included in DIN EN 15338-2007) • Surface requirements: surface dent mark, scratch, burrs etc. should controled in a certain limit • Smoothly open and close, don’t have big noise • Extensioin length accuracy • Gaps between case, drawer member shoube be in a certain limit • Package: retail package or bulk package • retail package: 1 pair in one polybag or in one box, include accessories • buld package: 20-30 pairs in one carton box, include or don’t include accessories • 6. Product logo and printing: according to customer requirements • 7. More requirements

  25. Drawer Runner Production and Quality Control Plan 1. Raw materials storage and incoming inspection • Colded rolled carbon steel, sandard: • Steel ball: material standard: • Incoming inspection, report, inspection plan etc. 2. Rolling • Rolling accuracy, dimension tolerance: • Rolling surface quality • In process quality control, inspection plan etc. 3. Punching • Punching accuracy, dimension tolerance: • Punching surface quality, beburr • In process quality control, inspection plan etc.

  26. Drawer Runner Production and Quality Control Plan • Coating color, accoridng to customer requirement • Coating layer quality, standard, test methods • In process quality control, inspection plan etc. 4. Powder coating 5. Assembly • Assembly methods, accuracy • Function test • In process quality control, inspection plan etc. 6. Final inspection and package • Package methods, according to customer requirement • 100% inspection before package

  27. Drawer Runner Production and Quality Control Plan • Quick reponse, technique support • Complaint resolve, contimuous quality improvement 7. Customer services and continuous improvement

  28. Package

  29. China Drawer Runner Supplier List

  30. Supplier Classification Rules

  31. China Sourcing Procedures Customers China Sourcing Customers Product specification sheet Approval supplier list Potential supplier list Supplier visit report Successful sourcing projects Price list New product inquiry Purchase order Quality control Quality complain Supplier management Other requires Monitor production shedule On time delivery Confirm delivery date Inspection arrangement transportation arrangement High quality products Product quality checklist In-process inspection Pre-shipment inspection QC training In-stock products handling root cause analysis Complain study Corrective actions Result review Quality improvement New supplier audit Long-term China supplier relationship Approved supplier list Supplier audit plan Continous improvement Traveling arrangement On site supplier audit On site inspection Payment , HR etc. Win-Win

  32. The End The End !

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