adjustable spring balance
adjustable spring balance
- Materials: Available in two specifications: Specification A with a mild steel case and Specification B with a brass case, both featuring stainless steel tape.
- Travel: Maximum travel is 990mm (39 inches), with constant force maintained over 609mm (24 inches). Longer tapes can extend up to 1778mm (70 inches).
- Balancing Capacity: Nine capacities ranging from 1.8 to 13.6 kg per pair, detailed in a table.
- Spring tension can be adjusted by rotating the spindle. Adjustments should be made in quarter turns with the tape fully extended.
- Ensure the tape remains free from paint and is pulled straight to avoid damage.
- No additional lubrication is required as balances are pre-packed with grease.
- Specify quantity, weight of sash, case material, tape exit type, attachment type, and tape length when ordering.
- Includes instructions for fitting and adjusting the spring balance, emphasizing the importance of correct handling to prevent damage.
Catalog excerpts
The 9s Adjustable Spring Balance > The Spiroflex adjustable spring balanceӔoffers varying loadcapacity for many counterbalancing applications.Used extensively for window counterbalancing and window replacementin both wood and plastic,suitable for upward rising and full drop windows,louvre sashes,service hatches and self closing doors.The unique design offers a stainless steel spring which operates smoothly and silently to give a perfectaction. Balancing Capacity > A range of nine varying capacities from 1.8 to 13.6 Kg per pair of balances can be obtained,as shown in table. Balancing Capacity PER PAIRRef.lbs.Kg M.274 81.8 ֖ 3.6M.286 102.7 ֖ 4.5M.198 133.6 ֖ 5.9M.2010 164.5 ֖ 7.3M.2113 195.9 ֖ 8.6M.2216 227.3 ֖ 10.0M2319 258.6 ֖ 11.3M.2422 2710.0 ֖ 12.2M.2525 3011.3 ֖ 13.6 Specification A > Mild steel case galvanised,with stainless steel tape. 84.14 mm 25.4 mmDished Hole5.15 mm DIA2.78 mm 139.7 mm Stainlesssteel tape84.14 mmRemovable brackets(can be fixed to any corner of main case) Main casecontaining spring and tapeAdjustingdevice4.76 mm Specification B > (For specially corrosive conditions.) Brass case with stainless steeltape.Suitable for upward rising and full drop windows,louvre sashes,service hatches,self-closing doors,etc. Travel > Maximum travel is 990mm (39).Constantforce is only maintained over 609mm (24Ԕ) travel.When travel exceeds 609mm (24) then it may be necessary to fitcatches to ensure the sash stays in position. Longer tapes can be fitted to a maximum retracting length of 1778mm (70Ԕ) beyond this length will simply allow the balance to be mounted further away from sash. Issue No.1 (Adj_spr_bal_A/eng) size="-4">
Open the catalog to page 1
5 mm DIA 8.5 mm DIA 114 mm 62 mm SPECIAL FACE FIXING(supplied loose)BOTTOM TAPE EXITNote: Balances are handedby side the tape emergeslooking upon face ofadjustable spiderӔ (GROUP 1)SIDE TAPE EXIT(GROUP 2) > 7.9 mm 15.9mm9.5 mmTYPE X STANDARDATTACHMENTSupplied with side exitbalances Bottom of balancebox44.45mm min15.9mm9.5mmHole sizes-5.1mm DiaTYPE W STANDARDATTACHMENTSupplied with bottom exitbalances 9.5 mm 15.9 mm12.7minTYPE Z STANDARDATTACHMENTFor use in limited space Bottom of balancebox (GROUP 1)(GROUP 2) > The balances are sentoutwith balancing capacity (highestand lowest) of one pair stamped...
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