
FEATURES
Concealed type design, special for hotel doors
Two speed adjustment, closing speed adjust and latching speed adjust
Hold open and non-hold open function can be adjust according to your needs
White, black, golden, Silver, Dark bronze and etc. different color for optional
Use anti-freezing hydraulic oil, can working under -40℃
Tested over 500,000cycles without damage, 5 years warranty
SPECIFICATIONS
APPLICABLE STANDARD | ●UL & ANSI/BHMA 156.4 Grade 1 |
APPLICABLE DOOR WIDTH | ●600~1100mm |
APPLICABLE DOOR WEIGHT | ●25~85kg |
HOLD-OPEN | ●Optional |
BACK CHECK | ●Yes |
DELAY ACTION | ●No |
LATCHING SPEED ADJUSTMENT | ●0-15° |
CLOSING SPEED ADJUSTMENT | ●15°-180° |
APPLICATION TEMPERATURE | ●-40℃-60℃ |
DIMENSION | ●253mm*32mm*62mm |
HOLE SIZE | ●The minimum door thickness is 34mm |
COLOR | ●White, Black,Golden, Silver, Dark bronze and etc. |
MATERIAL | ●Aluminium alloy |
SERVICE LIFE | ●Over 500,000 cycles |
WARRANTY | ●Five (5) years limited warranty |
3123 Concealed Door Closer
With the door closed, the main body and lever are completely concealed into door and door frame to streamline the external appearance.









WHY CHOOSE US
GEKRONE floor springs are certified by the world's most difficult American Standard ANSI Grade1 2 million times test.
GEKRONE is the main drafting unit of the standard "Hydraulic Floor Spring".
GEKRONE has 4 national invention patents and dozens of utility model patents related to floor springs. The technical strength is strong.
Our Service
OEM/ODM service:We have a strong R&D team and can provide various designs to meet your needs.Also we can produce the products according to customers' requirements Such as Customized packaging, customized labels.
Delivery service:Fast delivery, if it is an order we have stock, it will take 7 days, if it is an order we don't have stock, it will take 30-45 days.
Quality control and after-sales service:There will be strict product inspection before shipment.If there is a problem, We will provide you with solutions.
FQA
Q: Are you a trading company or a manufacturer?
A: We are a professional manufacturer of door control hardware for many years.
Q: Can you provide samples for quality inspection?
A: Yes, we are willing to provide samples, but the courier cost will be borne by you.
Q: What is the payment method of your factory?
A: T/T is the best.
Q: Where is your factory?
A: Our factory is located in Jiangsu Province, and we also have factories in Zhejiang and Anhui, which are very close to Shanghai. You are warmly welcome to visit our factory at your convenience.
Please do not hesitate to contact us and we will get back to you quickly!