Umbrella-type centers, also commonly called bull nose centers in foreign trade, are special tailstock supporting toolings for lathes, CNC lathes and cylindrical grinders. Different from conventional 60° pointed carbide centers, they feature a large-diameter umbrella-shaped frustum head (mushroom head profile). Positioned by fitting the workpiece’s inner bore or end face through the wide conical surface, they are specially designed to solve the supporting problems of workpieces without center holes, large-bore pipes, sleeves, flanges and thin-walled parts.
All shanks adopt standard Morse tapers MT2/MT3/MT4/MT5/MT6, which can be directly matched with machine tool tailstocks.
Bull Nose Live Center – Precision and Reliable Workpiece Support
The Bull Nose Live Center is designed to provide stable and accurate support for workpieces during turning and machining operations. Its rounded nose design is suitable for supporting workpieces with different shapes while maintaining smooth and reliable rotation.
Manufactured from high-quality hardened steel, the live center offers good wear resistance, durability and long service life. Precision manufacturing ensures stable running performance and helps maintain consistent machining accuracy.
Key Features:
Bull nose design for versatile workpiece support
Precision-ground components for reliable running accuracy
Hardened steel construction for enhanced durability
Smooth rotation during machining operations
Suitable for CNC and conventional turning applications
Available in different Morse taper sizes
Suitable for standard and customized requirements
OEM and ODM services available
Applications:
Widely used for supporting shafts, bars, tubes and other workpieces during turning, facing and other machining operations. It is suitable for general metalworking, automotive components, molds, machinery parts and other precision machining applications.
Customization:
Different sizes, taper specifications, nose dimensions, materials, surface treatments and packaging options can be provided according to customer requirements.
Contact Information
Mob/Whatspp :+86 15288891607
Email :Larry@ht-tools.net /ht05@ht-tools.net
| Order No. | MS.NO. | L | L1 | D | D1 | d | θ |
| DS2×60(60°) | MS2 | 132 | 64 | 60 | 17.780 | 20 | 60° |
| DS2×60(60°) | MS2 | 135 | 64 | 61.9 | 17.780 | 12.7 | 70° |
| DS3×76.2(70°) | MS3 | 152 | 81 | 76.2 | 23.825 | 19 | 70° |
| DS3×100(60°) | MS3 | 170 | 81 | 100 | 23.825 | 30 | 60° |
| DS3×100(75°) | MS3 | 164 | 81 | 100 | 23.825 | 32 | 75° |
| DS4×160(60°) | MS4 | 232 | 102.5 | 160 | 31.267 | 40 | 60° |
| DS4×160(75°) | MS4 | 225 | 102.5 | 160 | 31.267 | 35 | 75° |
| D5×200(75°) | MS5 | 252 | 129.5 | 200 | 44.399 | 40 | 75° |
| DS5×250(75°) | MS5 | 281 | 129.5 | 250 | 44.399 | 57 | 75° |
| DS6×200(75°) | MS6 | 320 | 182 | 200 | 63.348 | 40 | 75° |
| DS6×250(75°) | MS6 | 355 | 182 | 250 | 63.348 | 57 | 75° |
1. Large contact area with evenly distributed force to avoid deformation
The wide umbrella-shaped cone surface fits closely with the inner hole or end face of workpieces, dispersing pressure evenly. It prevents collapse and indentation on aluminum, copper tubes and thin-walled stainless steel parts, and delivers excellent vibration damping during heavy cutting.
2.No center hole required, simplifying machining procedures
Hollow pipes, flanges and disc finished parts do not need pre-drilled center holes, eliminating drilling and hole finishing processes, shortening clamping and machining time without damaging the original end surface precision of finished workpieces.
3.Automatic centering for stable and reliable coaxial accuracy
The wide cone surface provides powerful self-centering performance and avoids eccentricity during clamping, delivering superior roundness and end face perpendicularity after machining. Precision models run out within 0.002 mm.
4.Wide compatibility for large-bore hollow workpieces
Available in a full range of umbrella head sizes, it supports large-bore cylinder liners, oil pipes and large flanges, which cannot be supported by standard pointed centers.
5.High rigidity for stable heavy-duty machining
The integral frustum structure boasts higher strength than pointed centers. It resists deflection and tool deflection when turning or grinding large heavy workpieces, improving processing stability and dimensional consistency of finished products.
FAQ
1 Are you factory or Trade Company?
We are Industry and trade integration.
2 Could you supply samples?
Yes, we can supply.
3 Where do you export?
The whole world.
4 Could you produce non-standard products?
Yes, we can. Please supply samples or drawing.
5. What are the shipping ways?
By international express, by air, by sea are all ok.
6. Do you have minimum order quantity?
Conventional Products don’t have. The minimum order quantity of non-standard products is 50pcs.
7. What’s your payment way?
T/T, Pay pal, Western Union and so on.
8. What’s your delivery time?
5-20 days after order confirmed
9. What’s your package?
Neutron-packing with no brand, plastic box, carton and so on. If your quantity is good, we can package with your demand.
Contact Information
Mob/Whatspp :+86 15288891607
Email :Larry@ht-tools.net /ht05@ht-tools.net
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Contact Us
Tel: +86 534 425 1888
Mob/WhatsApp/Wechat: +86 137 9138 1619
E-mail: jacksun@ht-tools.net
Add.:East Area of Economic Development Area, Pingyuan County, Shandong Province. China 253100
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