Beijing Sunrise Technology Co., Ltd.
| Processing Type | Casting |
| Application | Oil and gas well drilling and production |
| Surrounding Temperature | -29℃~+121℃ |
| Tolerance | +/-0.05mm |
| Working Temperature | T-20 (-29℃~+121℃) |
| Machine Type | Drilling Tool |
| Payment Terms | Mostly 30%-70%. For some large-scale equipment,the payment term will be discussed. |
| Color | Red/Bule/As your request |
| Packaging Details | Seaworthy packaging |
| Brand Name | Factory-owned Brand |
| Place of Origin | CHINA |
| Certification | API, ASEM, etc. |
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Product Specification
| Processing Type | Casting | Application | Oil and gas well drilling and production |
| Surrounding Temperature | -29℃~+121℃ | Tolerance | +/-0.05mm |
| Working Temperature | T-20 (-29℃~+121℃) | Machine Type | Drilling Tool |
| Payment Terms | Mostly 30%-70%. For some large-scale equipment,the payment term will be discussed. | Color | Red/Bule/As your request |
| Packaging Details | Seaworthy packaging | Brand Name | Factory-owned Brand |
| Place of Origin | CHINA | Certification | API, ASEM, etc. |
| High Light | Wellhead Safety Clamp ，Oilfield Safety Clamp | ||
The wellhead safety clamp is used together with conventional slips to prevent drilling tools from falling into the wellbore. While slips alone hold the pipe string, the safety clamp adds a secondary, fail-safe grip. If the pipe begins to slip downward, the clamp automatically tightens its hold, stopping the fall.
The clamp consists of multiple flexibly hinged links. Each link contains a spring-retracted, tapered slip. When the clamp is tightened around the pipe, all slips contact the pipe uniformly.
Normal condition – The springs keep the slips lightly retracted. The clamp applies a gentle, uniform grip.
If the pipe starts to fall – Downward pipe movement forces the tapered slips to wedge tighter against the pipe. The more the pipe tries to fall, the harder the slips grip – creating a self energizing locking action.
Uniform grip – Multiple hinged links distribute force evenly around the pipe, minimizing point loading and reducing pipe damage.
Adjustable diameter – Adding or removing links changes the effective working range. One clamp can cover a wide range of pipe sizes.
Durable construction – All parts are made of heat treated alloy steel for high strength and long service life.
To ensure safe and reliable use, follow these guidelines:
|
# |
Caution |
|
a |
Select the correct slip size for your drill tool OD. |
|
b |
Before each use, check slip teeth for sharpness and secure mounting. Teeth must not be loose, installed backwards, or dirty. Ensure all screws and cotter pins are complete and tight. |
|
c |
For wells deeper than 1,000 m – Lifting operations require two elevators. Do not rely on single slips and a single elevator. |
|
d |
When lifting drill collars, use slips together with the safety clamp. Position the slips about 50 cm from the female buckle end face, and the safety clamp about 5 cm above the slips. |
|
e |
All personnel must stand clear of the slips during rotation to avoid leg or foot injuries. |
|
f |
Replace slip teeth when worn down to 75% of original height (i.e., 1/4 wear). |
|
g |
If newly installed teeth are still unstable, replace the entire slip body. |
|
h |
Keep each hinge part flexible and complete. Replace worn or damaged hinge components promptly. |
|
i |
When fully opened, the clamp opening must be at least as large as the nominal drill tool size. |
|
j |
After installing a new tooth plate, at least 80% of the teeth must make contact with the drill tool. |
|
Model |
Pipe Size Range (in) |
Pipe Size Range (mm) |
Chain Links |
Weight (kg) |
Weight (lb) |
|
WA-C |
3½ – 4⅝ |
88.9 – 117.5 |
7 |
20.9 |
46 |
|
WA-C |
4½ – 5⅝ |
114.3 – 142.9 |
8 |
25.0 |
55 |
|
WA-C |
5½ – 6⅝ |
139.7 – 168.3 |
9 |
27.7 |
61 |
|
WA-C |
6½ – 7⅝ |
165.1 – 193.7 |
10 |
29.1 |
64 |
|
WA-C |
7½ – 8⅝ |
190.5 – 219.1 |
11 |
31.3 |
69 |
|
WA-C |
8½ – 9⅝ |
215.9 – 244.5 |
12 |
32.7 |
72 |
|
WA-C |
9½ – 10⅝ |
241.3 – 269.9 |
13 |
40.0 |
88 |
|
WA-C |
10½ – 11⅝ |
266.7 – 295.3 |
14 |
41.8 |
92 |
|
WA-C |
11½ – 12⅝ |
292.1 – 320.7 |
15 |
44.0 |
97 |
|
WA-C |
12½ – 13⅝ |
317.5 – 346.1 |
16 |
46.3 |
102 |
|
WA-C |
13½ – 14⅝ |
342.9 – 371.5 |
17 |
48.6 |
107 |
|
WA-C |
14½ – 15⅝ |
368.3 – 396.9 |
18 |
50.9 |
112 |
|
Model |
Pipe Size Range (in) |
Pipe Size Range (mm) |
Chain Links |
Weight (kg) |
Weight (lb) |
|
WA-T |
1⅛ – 2 |
28.6 – 50.8 |
4 |
16.3 |
36 |
|
WA-T |
2⅛ – 3¼ |
54.0 – 82.6 |
5 |
18.2 |
40 |
|
WA-T |
3½ – 4½ |
88.9 – 114.3 |
6 |
20.0 |
44 |
Note: The number of chain links increases with pipe size. Adding or removing links adjusts the clamp to fit different ODs within each range.
Company Details
Business Type:
Trading Company,Exporter
Year Established:
2012
Employee Number:
20~50
Ecer Certification：
Verified Supplier
WHO WE ARE Beijing Sunrise Technology Co., Ltd. (Sunrise), established in 2012 and headquartered in Beijing, has grown into a globally trusted supplier of oilfield equipment. With over a decade of experience, Sunrise stands as a reliable, high-quality partner for the world’s most demanding ene... WHO WE ARE Beijing Sunrise Technology Co., Ltd. (Sunrise), established in 2012 and headquartered in Beijing, has grown into a globally trusted supplier of oilfield equipment. With over a decade of experience, Sunrise stands as a reliable, high-quality partner for the world’s most demanding ene...
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