Mini ENC EHNC DNC DHNC BNC BHNC Pneumatic Internal Grippers
Mini pneumatic internal-expansion grippers with compact, threaded-inlet and side-inlet configurations. Select 4-130 mm supplied gripping ranges, silicone-pad configurations, adjustable jaws and sensor-cable options.
Aluminum-alloy cylinder bodies. Working medium: air. Designed for internal gripping of suitable hollow workpieces in robot-arm and injection-molding fixtures. Each selected configuration is sold separately. Application objects and installation brackets are not included unless specifically confirmed.
Configuration and included items
Sensor-cable configurations are explicitly marked. Non-sensor configurations do not include a detection cable. The source specifies a hose-barb fitting, commonly M5 for 6 mm tubing, with a 4 mm alternative by request; confirm the fitting and thread for the selected model. The ENC-A4 sleeve configuration uses silicone sleeves. Other illustrated padded models use blue silicone contact pads.
| Model | Internal grip range (mm) | Sensor cable | Inlet reference |
|---|---|---|---|
| Mini-ENC-A4 / 11-20 mm internal grip / No sensor | 11-20 | Not included | See exact model drawing |
| Mini-ENC-A3 / 4-6 mm internal grip / No sensor | 4-6 | Not included | See exact model drawing |
| Mini-ENC-A4 / 6.5-20 mm internal grip / No sensor | 6.5-20 | Not included | See exact model drawing |
| Mini-ENC-A5 / 7.5-22 mm internal grip / No sensor | 7.5-22 | Not included | See exact model drawing |
| Mini-ENC-A6 / 8-22 mm internal grip / No sensor | 8-22 | Not included | See exact model drawing |
| Mini-EHNC-A3 / 4-6 mm internal grip / With sensor cable | 4-6 | Included | See exact model drawing |
| Mini-EHNC-A4 / 6.5-20 mm internal grip / With sensor cable | 6.5-20 | Included | See exact model drawing |
| Mini-EHNC-A5 / 7.5-22 mm internal grip / With sensor cable | 7.5-22 | Included | See exact model drawing |
| Mini-EHNC-A6 / 8-22 mm internal grip / With sensor cable | 8-22 | Included | See exact model drawing |
| Mini-ENC / 12-25 mm internal grip / No sensor | 12-25 | Not included | See exact model drawing |
| Mini-ENC-15G / 15-25 mm internal grip / No sensor | 15-25 | Not included | See exact model drawing |
| Mini-ENC-20G / 20-30 mm internal grip / No sensor | 20-30 | Not included | See exact model drawing |
| Mini-ENC-25G / 25-35 mm internal grip / No sensor | 25-35 | Not included | See exact model drawing |
| Mini-ENC-30G / 30-42 mm internal grip / No sensor | 30-42 | Not included | See exact model drawing |
| Mini-EHNC / 12-29 mm internal grip / With sensor cable | 12-29 | Included | See exact model drawing |
| Mini-EHNC-15G / 15-25 mm internal grip / With sensor cable | 15-25 | Included | See exact model drawing |
| Mini-EHNC-20G / 20-30 mm internal grip / With sensor cable | 20-30 | Included | See exact model drawing |
| Mini-EHNC-25G / 25-35 mm internal grip / With sensor cable | 25-35 | Included | See exact model drawing |
| Mini-EHNC-30G / 32-42 mm internal grip / With sensor cable | 32-42 | Included | See exact model drawing |
| Mini-DNC / 14-37 mm internal grip / No sensor | 14-37 | Not included | See exact model drawing |
| Mini-DNC-25# / 26-44 mm internal grip / No sensor | 26-44 | Not included | See exact model drawing |
| Mini-DNC-35# / 28.5-48 mm internal grip / No sensor | 28.5-48 | Not included | See exact model drawing |
| Mini-DNC-45# / 38.5-58 mm internal grip / No sensor | 38.5-58 | Not included | See exact model drawing |
| Mini-DNC-55# / 47.5-69 mm internal grip / No sensor | 47.5-69 | Not included | See exact model drawing |
| Mini-DNC-35-80 / 36-80 mm internal grip / No sensor | 36-80 | Not included | See exact model drawing |
| Mini-DNC-35-130 / 37-130 mm internal grip / No sensor | 37-130 | Not included | See exact model drawing |
| Mini-BNC / 15-38 mm internal grip / No sensor / Side inlet | 15-38 | Not included | Side inlet |
| Mini-BNC-25# / 26-44 mm internal grip / No sensor / Side inlet | 26-44 | Not included | Side inlet |
| Mini-BNC-35# / 28.5-48 mm internal grip / No sensor / Side inlet | 28.5-48 | Not included | Side inlet |
| Mini-BNC-45# / 38.5-58 mm internal grip / No sensor / Side inlet | 38.5-58 | Not included | Side inlet |
| Mini-BNC-55# / 47.5-69 mm internal grip / No sensor / Side inlet | 47.5-69 | Not included | Side inlet |
| Mini-BNC-35-80 / 36-80 mm internal grip / No sensor / Side inlet | 36-80 | Not included | Side inlet |
| Mini-BNC-35-130 / 37-130 mm internal grip / No sensor / Side inlet | 37-130 | Not included | Side inlet |
| Mini-DHNC / 16-41 mm internal grip / With sensor cable | 16-41 | Included | See exact model drawing |
| Mini-DHNC-25# / 26-44 mm internal grip / With sensor cable | 26-44 | Included | See exact model drawing |
| Mini-DHNC-35# / 28.5-48 mm internal grip / With sensor cable | 28.5-48 | Included | See exact model drawing |
| Mini-DHNC-45# / 38.5-58 mm internal grip / With sensor cable | 38.5-58 | Included | See exact model drawing |
| Mini-DHNC-55# / 47.5-69 mm internal grip / With sensor cable | 47.5-69 | Included | See exact model drawing |
| Mini-DHNC-35-80 / 31-83 mm internal grip / With sensor cable | 31-83 | Included | See exact model drawing |
| Mini-DHNC-35-130 / 35-130 mm internal grip / With sensor cable | 35-130 | Included | See exact model drawing |
| Mini-BHNC / 16-41 mm internal grip / With sensor cable / Side inlet | 16-41 | Included | Side inlet |
| Mini-BHNC-25# / 26-44 mm internal grip / With sensor cable / Side inlet | 26-44 | Included | Side inlet |
| Mini-BHNC-35# / 28.5-48 mm internal grip / With sensor cable / Side inlet | 28.5-48 | Included | Side inlet |
| Mini-BHNC-45# / 38.5-58 mm internal grip / With sensor cable / Side inlet | 38.5-58 | Included | Side inlet |
| Mini-BHNC-55# / 47.5-69 mm internal grip / With sensor cable / Side inlet | 47.5-69 | Included | Side inlet |
| Mini-BHNC-35-80 / 31-83 mm internal grip / With sensor cable / Side inlet | 31-83 | Included | Side inlet |
| Mini-BHNC-35-130 / 35-130 mm internal grip / With sensor cable / Side inlet | 35-130 | Included | Side inlet |
Dimension drawings and source differences
All numeric dimensions and leader lines are preserved in the exact-model supplied drawings. Values describe illustrated positions, not verified load ratings. Adjustable jaws show multiple mounting positions; pads on the illustrated 25#, 35#, 45# and 55# configurations differ in upper/lower width by approximately 3 mm.
Mini-EHNC base configuration: the SKU table specifies 12-29 mm while its supplied drawing footer states 10-29 mm. The listing uses the SKU-table selection range of 12-29 mm; confirm the actual minimum with BOLTTE before ordering. Adjustable DNC/BNC pictures use KT prefixes, while SKU names use Mini prefixes. The DNC 35-130 source footer contains a truncated model suffix; this listing follows the supplied SKU name, without changing numeric drawing dimensions.
Installation and selection
Check the actual opening, internal wall geometry, gripping range, jaw stroke clearance, inlet, thread and control-system compatibility before use. The supplier describes a magnetic ring, sensor mounting groove, silicone pads, seals and machined components. The supplied marketing quotes a 0.8-second action, more than one million cycles and repeatability below 0.04 mm, but provides no pressure, workpiece, load or test basis. These are unverified supplier references, not independently confirmed performance ratings. No validated operating-pressure, temperature, electrical or safe-load specification is provided.
