Why use hollow-through gripping?
The open center accommodates long or hollow parts while multi-tooth guidance keeps the grip compact, rigid and repeatable.
Product details
3 Jaw Pneumatic Gripper, Multi-tooth, Hollow Through THB
Compact structure can be used for short stroke and heavy load. The load is distributed to more surfaces to reduce the contact stress. Grease can be distributed more quickly and evenly.
Compact structure can be used for short stroke and heavy load
The load is distributed to more surfaces to reduce the contact stress
Grease can be distributed more quickly and evenly
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Product Introduction
Excellent performance
1. The THB grippers adopt high precision, permanent lubrication, multi-tooth and straight groove guidance ;
2. The THB grippers have hollow through structure.
● Compact structure can be used for short stroke and heavy load
● The load is distributed to more surfaces to reduce the contact stress
● Grease can be distributed more quickly and evenly
● It can ensure enough motion rigidity and accuracy for a long time
● The oil storage structure in the multi tooth guide extends the service life
● The central hole can be used for tubular or rod- shaped parts to pass through
● The center hole is equipped with internal thread to facilitate the installation of accessories
3. The THB grippers have a variety of sensor interfaces and pneumatic interfaces.
Gripping force maintenance-AS/IS
1. The THB grippers can be equipped with gripping force maintenance, expanded to THB- AS/IS(AS：closing maintenance, IS：opening maintenance ).
2. The spring is used as the holding accumulator, gripping force maintenance ensure a minimum
clamping force in the event of a pressure drop.
Model and Technical Parameters
| Model | Stroke per jaw [mm] | Closing/ opening force[N] | Min. spring force[N] | Weight [kg] | Recommended workpiece weight[kg] | Closing/ opening time[s] | Repeat accuracy [mm] | Protecti on class IP |
| THB-50A-1 | 2.5 | 370/400 | 0.26 | 1.85 | 0.03/0.03 | 0.01 | 40 | |
| THB-50A-1-AS | 2.5 | 490/- | 120 | 0.36 | 1.85 | 0.02/0.04 | 0.01 | 40 |
| THB-50A-1-IS | 2.5 | -/540 | 140 | 0.36 | 1.85 | 0.04/0.02 | 0.01 | 40/64 |
| THB-64A-1 | 4 | 550/650 | 0.5 | 2.75 | 0.03/0.03 | 0.01 | 40 | |
| THB-64A-1-AS | 4 | 680/- | 130 | 0.62 | 2.75 | 0.02/0.04 | 0.01 | 40 |
| THB-64A-1-IS | 4 | -/820 | 170 | 0.62 | 2.75 | 0.04/0.02 | 0.01 | 40 |
| THB-64A-2 | 2 | 910/930 | 0.5 | 4.55 | 0.03/0.03 | 0.01 | 40 | |
| THB-64A-2-AS | 2 | 1190/- | 280 | 0.62 | 4.55 | 0.02/0.04 | 0.01 | 40 |
| THB-64A-2-IS | 2 | -/1210 | 280 | 0.62 | 4.55 | 0.04/0.02 | 0.01 | 40/64 |
| THB-80A-1 | 6 | 900/1000 | 0.8 | 4.5 | 0.05/0.05 | 0.01 | 40 | |
| THB-80A-1-AS | 6 | 1120/- | 220 | 1.1 | 4.5 | 0.04/0.06 | 0.01 | 40 |
| THB-80A-1-IS | 6 | -/1200 | 200 | 1.1 | 4.5 | 0.06/0.04 | 0.01 | 40 |
| THB-80A-2 | 3 | 1370/1520 | 0.8 | 6.8 | 0.05/0.05 | 0.01 | 40 | |
| THB-80A-2-AS | 3 | 1730/- | 360 | 1.1 | 6.8 | 0.04/0.06 | 0.01 | 40 |
| THB-80A-2-IS | 3 | -/1920 | 400 | 1.1 | 6.8 | 0.06/0.04 | 0.01 | 40/64 |
| THB-100A-1 | 8 | 1700/1920 | 1.45 | 8.5 | 0.10/0.10 | 0.01 | 40 | |
| THB-100A-1-AS | 8 | 2200/- | 500 | 2.2 | 8.5 | 0.10/0.20 | 0.01 | 40 |
| THB-100A-1-IS | 8 | -/2600 | 680 | 2.2 | 8.5 | 0.20/0.10 | 0.01 | 40 |
| THB-100A-2 | 4 | 3400/3630 | 1.45 | 17 | 0.10/0.10 | 0.01 | 40 | |
| THB-100A-2-AS | 4 | 4300/- | 900 | 2.2 | 17 | 0.10/0.20 | 0.01 | 40 |
| THB-100A-2-IS | 4 | -/5130 | 1500 | 2.2 | 17 | 0.20/0.10 | 0.01 | 40 |
| THB-125A-1 | 10 | 3100/3500 | 2.4 | 15.5 | 0.20/0.20 | 0.01 | 40 | |
| THB-125A-1-AS | 10 | 3750/- | 650 | 3.9 | 15.5 | 0.17/0.35 | 0.01 | 40 |
| THB-125A-1-IS | 10 | -/4250 | 750 | 3.9 | 15.5 | 0.35/0.17 | 0.01 | 40 |
| THB-125A-2 | 5 | 5400/6100 | 2.4 | 27 | 0.20/0.20 | 0.01 | 40 | |
| THB-160A-1 | 13 | 4600/6000 | 4.7 | 23 | 0.50/0.50 | 0.02 | 40 | |
| THB-160A-1-AS | 13 | 5400/- | 900 | 7.2 | 23 | 0.40/0.80 | 0.02 | 40 |
| THB-160A-1-IS | 13 | -/7500 | 1500 | 7.2 | 23 | 0.80/0.40 | 0.02 | 40 |
| THB-300A-1 | 35 | 13000/13800 | 37 | 65 | 1.30/1.30 | 0.05 | 40 | |
| THB-300A-1-AS | 35 | 17400/- | 4400 | 52 | 65 | 1.20/2.50 | 0.05 | 40 |
| THB-300A-1-IS | 35 | -/17400 | 3600 | 52 | 65 | 2.50/1.20 | 0.05 | 40 |
| THB-300A-2 | 20 | 22000/23500 | 37 | 110 | 1.30/1.30 | 0.05 | 40 | |
| THB-300A-2-AS | 20 | 29700/- | 7700 | 52 | 110 | 1.20/2.50 | 0.05 | 40 |
| THB-300A-2-IS | 20 | -/29800 | 6300 | 52 | 110 | 2.50/1.20 | 0.05 | 40 |
Product guide
THB hollow-through 3-jaw pneumatic gripper
THB combines self-centering three-jaw motion with a central through-hole for tubular and rod-shaped workpieces in automated handling, assembly and machining cells.
Integration options
An internal thread supports accessories, and the available sensor and pneumatic interfaces simplify robot-cell integration.
Compare the 3-jaw range
Select THN for maximum rigidity, THT for compact slot guidance, or THB when center access is essential.
THB selection questions
Can the center hole be used for accessories?
Yes. The internal thread is designed for compatible accessories and tooling.
What information should I send for sizing?
Share workpiece diameter, length, material, cycle time, required gripping force and robot mounting constraints for a precise recommendation.
Selection resource
Compare models in the complete selection manual
Review ordering codes, dimensions and technical specifications for all 15 HYCLAMAVIN pneumatic gripper and robot tool changer families.
