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5.3.1 Bolts Mounting
LONGi modules come standard with 8 mounting holes matching M8 bolts (marked by the blue dashed box in the figure
below, according to the location distribution hereinafter referred to as inner four holes and outer four holes); 72 type and
some 66 type modules have additional 4 mounting holes matching M6 bolts (marked by the red circle in the figure below,
400mm holes for short), which are used for matching tracking bracket system products from manufacturers such as
NEXTracker. Apply bolts to fix modules on the bracket through mounting holes on the back frame. See details in Figure 7.
A indicates the overlap range between module frame and bracket.
5.3 Bifacial module Mechanical Installation
Modules and mounting system can be connected by bolts, clamps or embedded systems. Installation shall follow the
demonstration and suggestions below. If installation mode is different, please consult LONGi and obtain approval.
Otherwise, modules could be damaged and quality warranty will be invalid.
LONGi Mono-facial modules can be matched with the mainstream mounting systems in the industry. The test load of
module with typical mounting systems are as follows. As for other special mounting systems which are not included in the
table below, please consult LONGi customer service personnel.
①
NEXTracker Short Rail V2.3 is at the stage of phase-out.
The load information in this section comes from the sandbag pressure test results of LONGi or third-party certificate authorities. During the test, sandbags
with the weight of ≤10Kg per each are used to evenly spread onto module surface.
Module Type
Compatible Support Brackets
Mounting Hardware
Test Load (pa)
LR6-72PE-***M
LR6-72PH-***M
LR6-72HPH-***M
LR6-72HIH-***M
LR6-72OPH-***M
NEXTracker NX Horizon (1P)
Short Rail V2.3
①
4×bobtails (M6 head O.D. 16.8 mm)
(400mm holes position)
±2400
LR4-72HPH-***M
LR4-72HIH-***M
NEXTracker NX Horizon (1P)
Short Rail V2.3
①
4×bobtails (M6 head O.D. 16.8 mm)
(400mm holes position)
±2400
Short Rail V2.4
4×bobtails (M6 head O.D. 16.8 mm)
(400mm holes position)
+1200
-2400
Short Rail V2.4 + Reinforcement
4×bobtails (M6 head O.D. 16.8 mm)
(400mm holes position)
±2400
ATI DuraTrack™HZ Tracking System (1P)
Hi-rise 300mm Clamp
Drawing No: 20822
±1500
Hi-rise 400mm Clamp
Drawing No: 20834
±1600
600mm Clamp
Drawing No: 20715
±2800
Arctech
Horizontal Single-axis Tracker SkySmart 2
(2P)
3214mm rail + 900mm diagonal brace
M8 bolt+M8 plain washer(O.D.=16mm)
Drawing No: SZ0 ZC9001740
990mm holes position
±2000
Soltec
SF7 Single-Axis Tracker (2P)
2530mm rail
M6 bolt+M6 plain washer (O.D.=18mm)
Drawing No: SF7-MR-06-091 Rev.D00
400 + 1300mm holes position
+1200
-1800
LR5-66HPH-***M
LR5-66HIH-***M
NEXTracker
NX Horizon (1P)
Short RailV2.4 + Reinforcement
4×bobtails (M6 head O.D. 16.8 mm)
(400mm holes position)
±2400
LR5-72HPH-***M
LR5-72HIH-***M
LR5-72HTH-***M
NEXTracker
NX Horizon (1P)
Short RailV2.4 + Reinforcement
4×bobtails (M6 head O.D. 16.8 mm)
(400mm holes position)
±1800
