GREFEEDFM_eF7.852.255-PCBA Cover_PC+ABS-2026-04-17

1.

TOOLING FEASIBILITY REPORT
Design for Manufacturing
05/13/2026 Rev A

2.

Basic information
Customer:
C0641
Project Name
Runner Type:
Cold Runner
Cavities:
Part Name:
eF7.852.255 - PCBA Cover
Surface finish:
SPI-A3 SPI-B2
Coler: will be
adjusted according
to the sample.
Tonnage
/
Mold Structure & Steel:
S136H
Thickness:
1.48mm
No. Of Slider Per Cavity:
0
No. Of Lifter Per Cavity:
0
Part material
PC/ABS 65% PC Confirmed
M0089
2026.4.16
1x1
(Shrinkage 1.005 Pls comfirm)
Part Weight:
22g
Designer :Liu
Design manager comments ------
Mold Number:
Project manager comments -----
DFM Version
Submission Date
Submission Date
1
First submission
2026-04-17
05/13/2026 Rev A
Approval
This part
(should b

3.

Content
This document is used to transmit a DFM during the quotation stage for a detailed presentation of
the potential injection mould.
3
General Information
4
Parting Line
5
Gate location & type
6
Mould Layout
7
Slider & Lifter
8
Inserts
9
Ejection
10
Surface
11
Draft angle analyze
12
Analysis Wall
Thickness
13
Engravings
14
Issues & Proposals
15
Cooling System

4.

3.General Information
Part Size (L x W x H): D103.74X13.5mm
05/13/2026 Rev A
22g
Page 4

5.

分型面
4. Parting line
CAV
COR
The red is the parting line , pls
kindly comfirm
红色线为 PL 线 请确认。
If agree put ‘YES’, if not agree put ‘NO’
YES or NO
05/13/2026 Rev A
YES

6.

5. Gate location & type
Side
Gate
Tap
Gate
Sub
Gate
Direct
Gate
Moon
Gate
Pin
Point
Gate
Hot
sprue
Hot
Runner
System
X
Gate size: 4.8 x 1.2 mm.
Gate vestige: 0.3 mm.
Cold runner to submerged ejector pin gate.
冷流道转潜顶针进胶
05/13/2026 Rev A
进胶口 4.8x1.2mm
胶口残留 0.3mm
If agree put ‘YES’, if not agree put ‘NO’
YES or NO
YES

7.

6.Mold layout
Top side
Operator side
]
non operator side
Bottom side
If agree put ‘YES’, if not agree put ‘NO’
YES or NO
05/13/2026 Rev A
YES

8.

分型面
7. Slider & Lifter
N/A
If agree put ‘YES’, if not agree put ‘NO’
YES or NO
05/13/2026 Rev A

9.

Add ejector block insert to prevent product sticking
分型面
to front mold.
8. Insert
为防止产品粘前模风险 做弹块镶件
The red line is the parting line for the front mold insert,
please confirm.
红色线为前模镶件分型线 请确认。
If agree put ‘YES’, if not agree put ‘NO’
YES or NO
05/13/2026 Rev A
YES

10.

分型面
8. Insert
The red line is the parting line for the rear mold insert,
please confirm.
红色线为后模镶针分型线 请确认。
If agree put ‘YES’, if not agree put ‘NO’
YES or NO
05/13/2026 Rev A
YES

11.

9. Ejection location
Ø8mm Ejector pin
Ø6mm Ejector pin
Ø8mm 顶
针
Ø6mm 顶
针
Ejection layout, please confirm.
顶出布局 请确认。
If agree put ‘YES’, if not agree put ‘NO’
YES or NO
05/13/2026 Rev A
YES

12.

10. Surface finishing
Yellow Surface: SPI-A3
Green Surface: SPI-B2
Pls Confirm
黄色面做 SPI-A3
绿色面做 SPI-B2 请确认。
05/13/2026 Rev A
If agree put ‘YES’, if not agree put ‘NO’
YES or NO
YES

13.

11.Draft angle analyze
The green surface currently has 0°draft.
It is recommended to reduce material and add
1°draft in the ejection direction. Please confirm.
绿色面现状 0° 建议按出模方向减
料拔模 1° 请确认。
05/13/2026 Rev A
If agree put ‘YES’, if not agree put ‘NO’
YES or NO
YES

14.

12. Wall thickness analyze
Minor sink marks in the red area.
Improve by adjusting injection molding
machine parameters. Please confirm.
红色区域轻微缩水 通过调整注塑机参数改善
请知悉。
05/13/2026 Rev A
Overall result
Average thickness 1.48
maximum thickness 3.48
If agree put ‘YES’, if not agree put ‘NO’
YES or NO
YES

15.

13. Engravings
Material: >PC/ABS<
材质 >PC<
Material: >PC/ABS<
Overmolding material: >TPE<
Year/Month stamp
年月章
Please confirm the product marking
information:
请确认产品晒字信息。
字高 :3mm 字凸 :0.1mm
Character height: 3mm
05/13/2026 Rev ACharacter protrusion : 0.1mm
Grefee:2026-04-15:
OK, Had updated 已更
If agree put ‘YES’, if not agree put ‘NO’
YES or NO
YES

16.

14. Issues & Proposals
After
Befor
e
位利角 不易走。建色面做
R0.5is圆角修
The plastic wall has sharp corners now which
making it
正
.
确
stp
图档
difficult for the melt to flow. It is recommended to add a 0.5
mm radius (R0.5) to the red surface to improve it.
05/13/2026 Rev A
Please
confirm and Refer to the STP file for details.
If agree put ‘YES’, if not agree put ‘NO’
YES or NO
YES

17.

14. Issues & Proposals
After
Befor
e
The sharp corners at the plastic wall which make
it difficult
for the
现状胶位利角 不易走胶。建议红色面做
R1.0
圆角修
melt to flow.
正
. 请确认 详见 stp 图档
It is recommended to modify the red surfaces with a R1.0 fillet.
Please confirm and Refer to the STP file for details.
05/13/2026 Rev A
If agree put ‘YES’, if not agree put ‘NO’
YES or NO
YES

18.

14. Issues & Proposals
After
Befor
e
The current wall thickness is too thin, posing a risk of short shot.
现状胶位太薄 会有缺胶风险。建议红色面优化修正 .
It is recommended to optimize and modify the red surface.
请确认 详见
图档
Please confirm. stp
Refer
to the STEP file for details.
05/13/2026 Rev A
If agree put ‘YES’, if not agree put ‘NO’
YES or NO
YES

19.

14. Issues & Proposals
Before
After
The
current steel condition cannot
effectively
shut锋
off
the 议
TPE soft
现状胶位封不住软胶
TPE
会有走披
。建
material,
leading to flash.
It is recommended
to add steel to the red
红色面加胶修正
. 请确认 详见
stp 图档
surface to improve the shut-off. Please confirm. See STP file for
details.
05/13/2026 Rev A
If agree put ‘YES’, if not agree put ‘NO’
YES or NO
YES

20.

14. Issues & Proposals
Pls Provide 2D drawing
If don’t 请提供产品
have it, Pls 2D
just
note“No”
图 will be created later.
2D-drawing
Please proceed without drawing.
We will agree on the tolerances with
you.
Grefee:OK
If agree put ‘YES’, if not agree put ‘NO’
YES or NO
05/13/2026 Rev A

21.

15.Cooling System
前模运水示意图 详细以模具图为准。
The cooling sketch map of cavity, the details
based on the tooling design drawing.
05/13/2026 Rev A
If agree put ‘YES’, if not agree put ‘NO’
YES or NO
YES

22.

15.Cooling System
后模运水示意图 详细以模具图为准。
The cooling sketch map of core, the details based
on the tooling design drawing.
05/13/2026 Rev A
If agree put ‘YES’, if not agree put ‘NO’
YES or NO
YES

23.

THANK YOU!
05/13/2026 Rev A