1313 1st Daegu Middle School two 33” bats
●Results: Feb 21 (used 70 days); Used thousands of times
-Except for the paint, overall good
-7050 Cap fell off: Weak cap
Kyungsang Middle School two 33” bats
●Feb 28, currently not used much
152nd Screen Baseball Field (Siji Strike Zone: One 32” bat)
2019. 02
083rd Outdoor Practice Field (Dongchon Resort: One 32” bat)
2121 4th Daegu Middle School; second paint test for two bats
Jevisco Paint
--->> Not much used: based on 2.28
--->> so far so good
285th Daegu Middle School; third paint test for two bats
Kumkang paint: urethane primer + top coat
※ Opinion: (Feb 28) Two coaches (Daegu, Kyungsang)
--->> Handle is thick (rubber grip
2019. 03
036th Trial hit tested at two places
Daegu Gyeongbuk Baseball Organization two bats
Daegu T/P Baseball Team one each with survey questions
137th Trial hit 19 bats
National Social Baseball Team 12 bats / Yayongsa five bats / Kyungpook University Social Baseball Team one bat (acrylic) / Real Yagu Zone one bat
※Paint: Kumkang Urethane primer + Urethane primer
208th manufactured 12 bats for trial hit
Gyeongsan Legend one 32” bat / Dongseong-ro Real Hit one 32” bat / Stadium Shop (Aju) two 33” bats / Daegu Middle school two 33” bats / Song Min Hong two 33” bats
25Gyeongsan Legend one 32” bat; Kimony Grip test
26Distributor (4th Batter) one 33” bat
2019. 04
01Gyeongsan Legend 32” bat replaced (exchanged cap due to falling off)
08For Screen Baseball Fields
Screen Baseball King Yeungnam University 1 bat / Siji Real Hit 1 bat
09Chimsan Real Hit 1 bat / Dong-gu Strike Zone 1 bat
13Daegu Middle School 2 bats (changed cap / grip: rubber 1; pu 1) / Siji Strike Zone one 30” bat
16Weight Trade two 33” bats / one 32.5” bat
19Screen Baseball King, Hayang one 32” bat / Real Hit Yulha-dong one 32” bat
2019. 05
11Daegu Middle School 5 bats
Three bats: replaced only the cap / two bats: 7050 32.5”
28Baseball Batting Cage box B one 33” bat
2019. 06
06Gyeungsan Youth Baseball Class Playball one 33” bat / one 32” bat with grip
17Baseball Batting Cage box B one 32” bat + High quality grip
25Kyungbok Middle School three 33” bats (one sc / two 7050) Material Analysis: Sc among Korean raw material: 0.04%
2019. 07
17Fire AX three Sc bats / one 7050 (new) bat
19Box B : 2ea
1)Changed Cap: Weight Trade
2)Yusung 1 bat (no cap) -> returned (sound too loud)
22Box B 33” bat broke: 5.28~7.22 (a little less than 2 months) Fire Ax Sc Bat badly rated
23Launched Yusung Test No. 1 (Siji Strike)
24Yusung No. 2 Chilgok Strike
2019. 08
14New cap test two 33” bats / Box B
17Dongchon Resort Rubber grip test one 32” bat
21Real Hit Iksan, eight; replaced caps
26Box B new cap looks good / 33” slightly waving
27Legend Gyeongsan cap fell off --->> 8.28 Cap replaced and returned
28Weight Trade cap stuck inside --->> Brought in on July 19 and returned Aug. 28 Aug. 28 Strike Zone Siji, own company bat A/S
2019. 09
03Box B cap replaced and retested
06Improved cap injection complete
07Box B water transfer printing + knob paint
10Gyeongsan Legend 32” broken (3.20); ordered one 32” bat, one 33” bat Replaced NG product (Real Chimsan three 33” bats /three 32” bats (replaced) / Real Jinju Gajwa one 32” bat (not received))
11Trial production of 30” for children Gyeongsan Legend first order delivered, one 33” bat / one 32 bat Box B 32” bat returned (broken)
16Yulha Elementary School tested 30” 23oz
17Real Chimsan, improved cap broke (cap with logo, the other one is intact)
20Center of gravity
33" center of gravity 325mm point (35g added)
32” center of gravity 300mm point (30g added)
23Oksan Elementary School one 30” 23oz bat red for trial hit Kyungsang Middle School two 33” bats for trial hit
24Daegu Middle school two 33” bats for trial hit
26Yajoongsa Kim Sang Min four 33” bats for trial hit
30Real Hit Susong, Gunsan 11 bats A/S
2019. 10
02Kumoh Wonpyeong seven bats A/S
04Dongchon Resort grip test, bat broke: Grip: Nothing getting on hands Less problems occurring than before
14Taiwan-origin SC added PIPE test Fire AX one 33” bat / YouTuber: You Play Baseball? (AYA) two 33” bats (one SC; one 50) Sent two 32” bats for Table Top water transfer tests (after primer)
16Gyeongsan coach Min one SC 33” bat
17Table Top water transfer test Box B one 32” bat
22Baseballm (Distributor) two SC 33” bats for trial hit
23Weight Trade (Distributor) one Design SC 33” bat for trial hit / one 32” bat
2019. 11
01Daegu Middle School two 7050 33” bats for trial hits / one cap broken
Injection material Hytrel 3363 broke
--->> changed to original material and redone
Oksan Elementary requested one more bat for trial hits / existing trial hit bat cap broke
Commissioned mold design to Kwangwoon
Baseballm, sent two 7050 bats for trial hits / to be compared with Sc
07Box B bat top part burst 8.14~11.7
14Cap 3355 replaced, bat test Box B two 33" bats 7050 --->> 11.25 results: Wave appeared around the cap
08Daegu Middle School HDC2/ two 33” bats yellow tested Five bats requested for a/s: NG cap
17Product test/finish 90% Improved cap (5:2); first test + HDC3 + Knob+ including pressure transfer (check image)
--->> Two cap adhesive types (strong, weak) Two 33” Box B
28Daegu Middle School HDC3 two 33” bats (two white)
29Box B (1.17) test results -Barely any dents -Cap (5:2) good -Top balance response better
31Box B 12.6 test bat ripped (for masking tape test) Sent test sample to wooden bat factory (HDC3 yellow middle balance)
2020. 02
03Introducing Box B, bevel one 33” bat / one 32” bat / two additional 32” bats
Daegu Middle School Yellow HDC2 broke
1.8~2.3 hit many times; cap (5:5) is fine; knob sticker has fallen off
1,000~1,500 times/day x 15 days= predicted 15,000~20,000 times
06Daegu Middle School HDC2 (or 3) two Type A yellow 33” bats; 3rd heat treatment; head 7mm short
--->> Result: 5.11; one broke
--->> One lost the counterweight inside
Amnyang Wooden Bat Factory test results
Too rigid, average repulsive power: GB baseball, YouTuber who used to be a professional player
--->> One additional test
HDC2 33” improved Cap (5:2) applied
18Sent one sample to GB baseball through Amnyang Wooden Bat Factory 33” HDC2 yellow without additional weight
22Requested for product testing by Taiwan (total 9) First, second, third new ones, two bats each / three broke (one first / two seconds)
29Box B Sample one HDC2 33"
Balance/transfer printing
GB baseball two for tests
One HDC1 / one HDC 2
Balance / feel / repulsive power
--->> Box B writing erased
2020. 03
05Box B transfer print test, one coating was applied a little thicker 3.9 --->> Still intact
09Gyeongsan Legend 2 Caps replaced
16Box B transfer print slightly erased (batted 2,000~3,000 times)
18Coach Min baseball yellow HDC2 33” for middle testing
20box B transfer test on one 33"
--->> 3.27 no issues
3.31--->> no issues
4.3--->> slightly erased (removed by finger nails)
23one for Baseball M test (paint, printing erased etc.)
2020. 04
17Box B print test 33” Dongyoung water transfer + Daean Decal
30Paint issue confirmed: paint ratio
2020. 05
02Box B one bat for testing
New roll+Mandrill, 4th heat treatment / black paint & transfer adhesiveness / whether it ripples~(2.37t)
--->>5.11 Dongyoung transfer writing erased
--->>5.18 Overall OK; no problems
04Baseball M, three for testing One 33” bat; one 32” bat: counterbalance / one 33” bat: no counterbalance, print NG
11Two (yellow/black) for GB baseball Two for Daegu Middle School (same, 4th heat treatment) (8-1)
--->> Daegu Middle School recalled two yellow ones One broke, one’s counterbalance fell out
14Daegu TP Kim Wanjin, yellow 33-28; 4th heat treatment 8 times
Box B 720g~30g test 33-26(-7) no rippling --->> 5.18 slight rippling Response: Very good, feels like carbon~ --->>5.29 used many times because of the good response, rippling is similar as before
--->>7.2 Broke: used for 1.5 months
20Fire AX test, same type of bat as 5.2 box b
25GB baseball 702g 33” test, a little different from box b, slightly lighter; head 15~20mm shorter
28Fire AX Black (acrylic+Urthane top coat) eight bats
2020. 06
02Sent five Fire AX after polishing --->>Test for anodizing Two for first hits for IM Sports; to be tested after 14 days
10Daegu Gyeongbuk Baseball Organization 1st league trial hit 18:00~19:00 Yellow, black N8 two bats; draw: N8-1 yellow 770+14g (one bat)
11One Amnyang Wooden Bat (Hit) / ordered 8-1 (770g+14g) for trial hit
29box B 2.4t one middle top / 52g cap Response: Light sound. There is waving
30GB baseball 2.4t (thick polish) 784g (307), including 15g, 58g cap
2020. 07
176th revision (for enhanced grip feel) test box B one 33” bat 764g bp 290mm --->> 9.9 Broke GB baseball one bat 770g
214th Batter; one 6th revision 260mm test/ good response
22Chimsan thick neck bat test / 33” yellow
30One Box B (6th revision 260mm+25g / Black no printing) Baseball M 250 1ea, 260 1ea (White/Black 1 each no printing) --->> 8.28 Black slightly erased
31One Amnyang wooden bat / 6th revision 260mm+25g / Black no printing
2020. 08
01Daegu Middle School 6th revision 260mm+25g 1ea black / 250mm 1ea white / no printing / used after 8.14
03You Play Baseball? One 250mm / white bat, simple feedback
114th Batter additional 33, one 250mm / white bat 8.12 Feedback: slightly on the heavy side but rotates well. Rigid feeling
22Box B 260 (20+cap58g); Samhwa Paint black
31Songpa Box B white bat 250mm/58 cap --->> 9.7 Slightly on the heavy side but flies well
2020. 09
08Samhwa Paint two types, black+transfer+coating test
--->>9.11 Check: no erasing
--->>9.14 Check: 2.5:1 bat erased:
14D Decal integrated sample+ Samhwa paint special paint (2.5:1)
; thicker primer (about 8g)+Decal (70 degrees 40 minutes) + Coating (3~4g) 80 degrees for one hour
Cross cutting test results are good
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