Series GRM
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The Series GRM Clamp continues to be the industry-leading pneumatic actuator of choice for material handling solutions worldwide. Its simple design and rugged construction have proven customer satisfaction and loyalty since 1998. Three standard sizes (25, 32, and 40 mm bores), 13 standard jaw styles, and countless options and accessories, make the Series GRM Clamp the most versatile and modular clamp in the world. Each and every aspect of the Series GRM Clamp was influenced by you, our customer. We pride ourselves in providing a product that suits your specific application needs. The Series...

How to Use This Catalog The Series GRM Clamp is a highly modular pneumatic device, meaning it is capable of many configurations suitable for your specific application needs. This catalog uses a step-by-step approach that walks you through the selection and ordering process for Series GRM Clamps. You will find each section of the catalog targets the specific attributes (options) of the clamp (i.e., mounting options, jaw style options, tip options). At the beginning of each section you will find basic questions related to the options you are investigating. These questions will help you narrow...

ORDERING DIRECTIONS This catalog uses a step-by-step approach that walks you through the selection and ordering process for Series GRM Clamps. You will find each section of the catalog targets the specific attributes (options) of the clamp (i.e., mounting options, jaw style options, tip options). Helpful reminder: Look for the shaded headers and charts throughout the catalog that correspond to the colors shown in the frames below. Size 1 S&F Size 2 S, C, D, F, G, H, J, K, L, M, N, P, & R Size 4 S, F, G, H, & J PORT FITTINGS OPTIONS Refer to Unit Size section. Refer to Jaw Styles & Openings...

Step 1 - Model: GRM This step is already done for you. GRM is the 3 digit prefix used by PHD to define this product line. Two GRM1xS clamps grab slip sheet between layers of cans in depalletizing machine Six GRM2xN clamps are used for this automated pallet binding machine. Four GRM2xS clamps handle sheet metal for automotive/metal stamping press. Two GRM2xS clamps are used in coffee packaging application to move filled bags from conveyor to cartons.

UNIT SIZE Step 2 - Unit Size Choosing the correct size of GRM Clamp depends solely on the application. Knowing the answers to the following questions will help refine the selection process. If you are still unsure about your application and sizing selection, contact your local distributor or a member of PHD for assistance. (Refer to charts on page 7.) 1. Does your application have space restrictions? a. Yes – GRM1 (small), GRM2 (medium), GRM4 (large) c. Unsure – Refer to Chart 1 Unit Size Comparison for base unit envelope sizes and remember to include bolt-on options and accessories in your...

UNIT SIZE PHD Series GRM Clamps UNIT SIZE COMPARISON (CHART 1) NOTES: 1) Based on 87 psi [6 bar] air pressure . 2) Refer to B08 and B10 options in Accessory Options section for increased grip force. 3) Maximum envelope size of base unit without options. 4) Maximum weight of base unit without options. UNIT SIZE COMPARISON (CHART 2) NOTES: 1) Refer to B08 and B10 options in Accessory Options section for other cylinder parameters. 2) Based on 87 psi [6 bar] air pressure. 3) Refer to G11 option in Accessory Options section for high-temp applications. All dimensions are reference only unless...

Step 3 - Mounting PHD has a wide variety of standard and accessory mounts available for the Series GRM Clamp. Use the following questions and graphical representations to help in your selection process. If you are unable to locate a mount that suits your application needs, contact your local distributor or a member of PHD for assistance. 1. What will the clamp be mounted to? a. Rigid surface – P or T or B12, B14, and B16 options in the Accessory Options section b. Tubing – All mounts except P or T or B12, B14, and B16 options in the Accessory Options section 2. Does the mount need to be...

Mounts rotate around the clamp Clamp body rotates around the tube

ORDERING DATA: Note: Rear mounting threads (T option) must be specified when ordering an accessory mount (Mxx option). 90° SPHERICAL MOUNTING BRACKET All dimensions are reference only unless specifically toleranced. ^LJ solutions for pno INDUSTRIAL AUTOMATION

MODEL NUMBER ACCESSORY CODE ACCESSORY CODE Note: Spherical or Non-spherical in one mount All dimensions are reference only unless specifically toleranced. 11 aLJ solutions for pno INDUSTRIAL AUTOMATION GRM124B

GRMx x or GRMxTx- M21 M39 90° SPHERICAL MOUNTING BRACKET LETTER DIM CLAMP SIZE GRMx x or GRMxTx- M22 M46 NON-SPHERICAL MOUNTING BRACKET LETTER DIM CLAMP SIZE All dimensions are reference only unless specifically toleranced. SOLUTIONS FOR INDUSTRIAL AUTOMATION

SIDE MOUNTING SIZES 1, 2, & 4 GRMx GRMx M23 M47 SPHERICAL MOUNTING BRACKET OVERSIZE SPHERICAL MOUNTING BRACKET FOR SPHERICAL MOUNTING BRACKET: CLAMP SIZE FOR OVERSIZE SPHERICAL MOUNTING BRACKET: CLAMP SIZE All dimensions are reference only unless specifically toleranced. aLJ solutions for pno INDUSTRIAL AUTOMATION

GRMxTx-GRMxTx- M27 M36 M30 M37 SPHERICAL MOUNTING BRACKET WITH M8 FASTENERS SPHERICAL MOUNTING BRACKET WITH M8 FASTENERS M9 CLAMP CAN BE ROTATED 360° WITHIN BRACKET CLAMP CAN BE ROTATED 360° WITHIN BRACKET ACCESSORY CODE ACCESSORY CODE ACCESSORY CODE ACCESSORY CODE All dimensions are reference only unless specifically toleranced. ^LJ solutions for pno INDUSTRIAL AUTOMATION

SIDE MOUNTING SIZES 1, 2, & 4 GRMxTx- SPHERICAL MOUNTING BRACKET FOR SQUARE TUBE CLAMP SIZE CLAMP SIZE All dimensions are reference only unless specifically toleranced. 15 aLJ solutions for pno INDUSTRIAL AUTOMATION GRM124B

REAR MOUNTING SIZES 2 & 4 PHD Series GRM Clamps GRMx GRMx REAR MOUNTING BRACKET (Spherical or Non-Spherical) OVERSIZE REAR MOUNTING BRACKET (Spherical or Non-Spherical) INSTALL MOUNTING M8 TUBE ONLY THROUGH BALL FOR SPHERICAL MOUNTING FOR REAR MOUNTING BRACKET: CLAMP SIZE FOR OVERSIZE REAR MOUNTING BRACKET: CLAMP SIZE All dimensions are reference only unless specifically toleranced. ^LJ solutions for pno INDUSTRIAL automation