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Process Tolerances

Sheet Metal

Laser CuttingMaterial ThicknessSheet Bending
Linear
Tolerances: X.XX
Hole Diameter
Tolerances
0.5 mm to
2.0 mm
2.0 mm to
5.0 mm
5.0 mm to
10.0 mm
10.0 mm to
20.0 mm
AngularXYZ
Tolerances
Standard
Tolerances
+/- 0.45 mm+/- 0.12mm+/- 0.05+/- 0.10+/- 0.25+/- 0.50+/- 1.0 degree+/- 0.45 mm
High Precision
Tolerances
+/- 0.20mm+/- 0.08mm+/- 0.5 degree+/- 0.20 mm
MAXIMUM SHEET SIZE (mm)
Sheet SizeQ235 / Q345 (mm)SAPH440 (mm)SPCC (mm)SGCC (mm)ALUMINUM (mm)STAINLESS STEEL (mm)
1,500 X 3,0001,500 X 3,0001,260 X 2,5001,250 X 2,5001,250 X 2,5001,220 X 2,4401,220 X 2,440

Process Limitations

Surface Finish
CategorySub CategoryMax Length (mm)Max Width (mm)Max Height (mm)
AnodizedNatural15001000400
AnodizedBlack15001000400
ECoatingBlack1500600300
ZincTrivalent Blueish Zinc1200400400
PassivationNot Applicable900800400
Powder CoatingAll Color240018001200
Mill FinishNot ApplicableNot ApplicableNot ApplicableNot Applicable
Brushed FinishNot Applicable1500300200
Antirust OilingNot ApplicableNot ApplicableNot ApplicableNot Applicable
Micro-PolishingNot Applicable250250250
LASER CUTTING
Length (mm)Width (mm)Thickness (mm)
Ref Max. Sheet SizeRef Max. Sheet Size20.0
SHEET BENDING
Length (mm)Width (mm)Thickness (mm)
240060010.0
CHAMFER
Chamfer AngleChamfer Angle Type QtyMax Qty of Chamfer
Only accept 30°+/-2°, 45°+/-2°, 60°+/-2°Chamfer Angle Type <= 2 : OKNot Applicable
Maximum Part Size for Chamfer (Unfolded Size):400mm X 400mm
Maximum Material Thickness:1.6mm to 20.0mm
Maximum Chamfer Length:300.0mm
THREADING
Thread SizeThread Type QtyMax Qty of Thread
M2 to M12Thread Type <= 3 : OKNot Applicable
Maximum Part Size for Thread (Unfolded Size):400mm X 400mm
Maximum Material Thickness:1.6mm to 20.0mm
Maximum Distance Between Thread:200.0mm
COUNTERSINK
Countersink SizeCountersink Type QtyMax Qty of Countersink
M2 to M12Countersink Type <= 2 : OKNot Applicable
Maximum Part Size for Countersink (Unfolded Size):400mm X 400mm
Maximum Material Thickness:1.6mm to 20.0mm
Maximum Distance Between Countersink:200.0mm
LASER ENGRAVING
Maximum Logo SizeMaximum Height of Part
150mm x 150mm550mm

CNC Turning

Process Limitations

Surface Finish
CategorySub CategoryMax Length (mm)Max Diameter (mm)
AnodizedNatural565295
AnodizedBlack565295
ECoatingBlack565295
ZincTrivalent Blueish Zinc565295
PassivationNot Applicable565295
Powder CoatingAll Color565295
Antirust OilingNot Applicable565295
Mill FinishNot Applicable565295

Tolerance

Linear Dimensions
Permissible deviations in mm for ranges in nominal lengthsTolerance class designation
ISO2768F (fine)ISO2768M (medium)ISO2768C (coarse)
0.5 up to 3±0.05±0.1±0.2
over 3 up to 6±0.05±0.1±0.3
over 6 up to 30±0.10±0.2±0.5
over 30 up to 120±0.15±0.3±0.8
over 120 up to 400±0.20±0.5±1.2
over 400 up to 1000±0.30±0.8±2.0

External Radius and Chamfer Heights
Permissible deviations in mm for ranges in nominal lengthsTolerance class designation
FineMedium (m)Coarse
0.5 up to 3±0.2±0.2±0.4
over 3 up to 6±0.5±0.5±1.0
over 6±1.0±1.0±2.0

Angular Dimensions
Permissible deviations in degrees and minutes for ranges in nominal lengthsTolerance class designation
FineMedium (m)Coarse
Up to 10±1°±1°±1°30'
Over 10 up to 50±0°30'±0°30'±1°
Over 50 up to 120±0°20'±0°20'±0°30'
Over 120 up to 400±0°10'±0°10'±0°15'
Over 400±0°5'±0°5'±0°10'

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